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A Frequency-Correcting Method for a Vortex Flow Sensor Signal Based on a Central Tendency

Bin Li, Chengyi Wang, Jie Chen
<span title="2020-09-20">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/taedaf6aozg7vitz5dpgkojane" style="color: black;">Sensors</a> </i> &nbsp;
In this paper, the generalized mode method is proposed based on the central tendency characteristic of the vortex signal and combined with the existing filter bank method.  ...  A vortex flow meter employs a sensor based on the piezoelectric vibration principle to realize vortex signal acquisition, and therefore the measurement results are susceptible to vibration noise.  ...  To solve this problem, a frequency correction method based on the central tendency of a vortex signal is proposed in this paper.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s20185379">doi:10.3390/s20185379</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/32962185">pmid:32962185</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC7570468/">pmcid:PMC7570468</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/cwr24cbibfe5nivfxxjfglqs2u">fatcat:cwr24cbibfe5nivfxxjfglqs2u</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200924021206/https://res.mdpi.com/d_attachment/sensors/sensors-20-05379/article_deploy/sensors-20-05379.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a4/4a/a44ab5de3db341152d5e0ccc6b04b8c36ff21ed1.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s20185379"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570468" title="pubmed link"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> pubmed.gov </button> </a>

The effects of three-dimensional imposed disturbances on bluff body near wake flows

P.W. Bearman, N. Tombazis
<span title="">1993</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/e764p3h5e5ay3edjwkgfryxcbm" style="color: black;">Journal of Wind Engineering and Industrial Aerodynamics</a> </i> &nbsp;
The method used to determine flow direction was based on detecting the zero crossings of the velocity signal for each of the two wires.  ...  The moving sensor within the region R would obtain the flow pattern p for one point within R (sampling of the moving sensor signal and the signals from S n would, of course be simultaneous).  ...  The most notable feature of the flow around the sinusoidal model was the dual vortex shedding frequency characteristic.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/0167-6105(93)90029-n">doi:10.1016/0167-6105(93)90029-n</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/w5mrrb43xbd4hkzmrnz2jaexia">fatcat:w5mrrb43xbd4hkzmrnz2jaexia</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170830044126/http://www.dtic.mil/get-tr-doc/pdf?AD=ADA290824&amp;Location=U2&amp;doc=GetTRDoc.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/d9/42/d9427c12d727dcb6cb513b0db2a9ca3e93dc2afb.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/0167-6105(93)90029-n"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

An in-depth numerical analysis of transient flow field in a Francis turbine during shutdown

Saeed Salehi, Håkan Nilsson, Eric Lillberg, Nicolas Edh
<span title="">2021</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2x3okcl64vgazdblla4nocvmye" style="color: black;">Renewable Energy</a> </i> &nbsp;
The inlet pressure is based on a zero-gradient assumption.  ...  Therefore, one must employ a signal analysis method to obtain the instantaneous mean and the fluctuations with respect to that instantaneous mean.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.renene.2021.07.107">doi:10.1016/j.renene.2021.07.107</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/zsxa6twubnfitg4eom55nxb5su">fatcat:zsxa6twubnfitg4eom55nxb5su</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210804171657/https://pdf.sciencedirectassets.com/271431/AIP/1-s2.0-S0960148121011125/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBkaCXVzLWVhc3QtMSJGMEQCIB%2Flm5aacxEViMJxS5me2L2RFuwJLmXD6vQJnkOZDD9FAiAUdKApAscbvYuCqxC3c3S4QE1Ib4ynhYZiyZfhCgolUir6AwgyEAQaDDA1OTAwMzU0Njg2NSIMhNjkHQj%2F%2F4nxXjHXKtcDb%2Fiv%2FkLOr%2B23SePmLZRc1aWsCXyB1vH8CXEaNsC7OioGwolXjV0%2BTuWgFlrSpJ9SqkghttIVZm8V%2BYQknm%2BN%2FYzQPFjKfDASQhk9nwOyw0jTVDUIBt3eh5tbqVWO6zJW8%2BIuijnQeczUGzYB5CpniDPFtRocswAxBLIyrlOnfaiM6LGq2L1k%2B75%2BeVtvt%2Fmox9ZV%2FnfJ7PjqQnbQEh4zSs33zhhnq100ZgWtH9wngNgQsaYQhh9ymDVkhwiiKoNuFLlhFqXZ4qqclvXJ0KU1VAqjXM%2B%2BcQAZqKjOba2w7xoNxlFtP9ex1YQT6GPKi13hWUt%2Fbns5toGDnjTSOS79Uff1nPZnG3TwGANU9T%2BJlpvG5j74mb6s8cw7wZIqpujoDChMMhzOhESgcShO7LK7uqR0iLjqLkil%2BnTUYNjRhBfKl2QqAMEuTGGy1cdx1%2B%2BJNFnqbkZDMfnNxZn1k%2Fti%2FcZPNU6o74xtPGVG5UkTgMtPg84nkFO7QXnwLnRrYJSxF7LKnwtGg74B%2F3NzhzBPV%2BwxJDEoRvo0SdKWwgY4E8Q18GxGHUuDrvuJi1Wosm%2BSLRQqGxnqcc3fj6m7xeVhsYgN%2FcCwaBQOgljA3aksF8VpYYWNIbxUMOyLq4gGOqYB6kZzGraXeDHtk9K6AQ4kY0DWVdPfI93N5rdWorXf4KxlMiwdMGoG2LfhzNkCjCo1sATZ28n7ulxoTjwDRll9fVsHTMJtbOX52duOpFGxQoh4DIojb5IbEJLU2NZZhKDaWGnWcHWpjuuc8r8MXFxLxSlgiiywNJ%2F9Zd4S42SNnrMgse7aQcheuAt%2BQQh3i%2Fa7mgGDOIrCu0PRTA0Vftl%2BmPtJVYeDSg%3D%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Date=20210804T171647Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=300&amp;X-Amz-Credential=ASIAQ3PHCVTYVMYT2OUU%2F20210804%2Fus-east-1%2Fs3%2Faws4_request&amp;X-Amz-Signature=d15d8656995158556d51be7f105db3b6784f50aa0cbb1e0685321e6b331ca61c&amp;hash=0fd803386f25262b7ccb97031dae3e82dc249f05fe04bc787a41a6878c933d24&amp;host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&amp;pii=S0960148121011125&amp;tid=spdf-51ed803a-89c3-46cc-93cc-09623f2cb68f&amp;sid=fc00b7328b7026491a9b0de37e5c89ea7084gxrqa&amp;type=client" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f0/7a/f07a44d6e3294fe577fdcf622ea6e6bbf4d187e9.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.renene.2021.07.107"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> elsevier.com </button> </a>

Detection of cavitation in hydraulic turbines

Xavier Escaler, Eduard Egusquiza, Mohamed Farhat, François Avellan, Miguel Coussirat
<span title="">2006</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/pwy3v3rc7jd5ndl44mfd5tsuhe" style="color: black;">Mechanical systems and signal processing</a> </i> &nbsp;
The main techniques are the study of the high frequency spectral content of the signals and of their amplitude demodulation for a given frequency band.  ...  This knowledge has been gained from flow visualisations and measurements in laboratory devices such as a high-speed cavitation tunnel and a reduced scale turbine test rig.  ...  Our gratitude is also conveyed to the staff of CDIF and LMH-EPFL for their technical support.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ymssp.2004.08.006">doi:10.1016/j.ymssp.2004.08.006</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/snu7ufab5rcong2vjfktibiua4">fatcat:snu7ufab5rcong2vjfktibiua4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20110401000925/http://infoscience.epfl.ch/record/90761/files/MSSP_2006_Escaler.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/8c/2e/8c2e98154784ab11911b4be192f35cdb3f44f439.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ymssp.2004.08.006"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Hydraulic Power Plant Machine Dynamic Diagnosis

Hans Günther Poll, José Carlos Zanutto, Walter Ponge-Ferreira
<span title="">2006</span> <i title="Hindawi Limited"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5k6wnnhj5fbe7o7v3zavqqtk4u" style="color: black;">Shock and Vibration</a> </i> &nbsp;
The diagnostic method presented in this report helps one to understand the importance of adequate operation to allow a low maintenance cost for the entire power plant.  ...  The method how to acquire these quantities is discussed in details together with the importance of correct sensor balancing, calibration and adequate correlation with the physical quantities.  ...  Equation (1) shows the relation for the frequency. f = S r ν d (1) where S r = 0.2 − 0.24. f is the vortex emission frequency, ν is the flow velocity at the separation point, and d is the vortex shedding  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1155/2006/203834">doi:10.1155/2006/203834</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/65wsa7253ncl7ht5fl2n5tfud4">fatcat:65wsa7253ncl7ht5fl2n5tfud4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190502031754/http://downloads.hindawi.com/journals/sv/2006/203834.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/04/2f/042f19acec499c49b440866c447d3c8eba03793b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1155/2006/203834"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> hindawi.com </button> </a>

Impact of wing-tip vibration on the development of a wing-tip vortex

Yoshitsugu NAKA, Masataka HIMEDA
<span title="">2020</span> <i title="The Japan Society of Mechanical Engineers"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/m3pzcr3ynfcx5garcrfockcefm" style="color: black;">Journal of Fluid Science and Technology</a> </i> &nbsp;
The wing-tip vortex is weakened in the mid-upstroke, and its impact depends on the actuation frequency.  ...  External forcing on a wing-tip vortex can affect its instability, and therefore an optimal perturbation can improve the aerodynamic performance of the wing.  ...  Ltd. for providing usage of a high speed camera, Phantom V1840.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1299/jfst.2020jfst0018">doi:10.1299/jfst.2020jfst0018</a> <a target="_blank" rel="external noopener" href="https://doaj.org/article/bd19d56be53843acbeaea355712040d9">doaj:bd19d56be53843acbeaea355712040d9</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/asdsx5jgxnexzijadwkllwtwry">fatcat:asdsx5jgxnexzijadwkllwtwry</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201107215056/https://www.jstage.jst.go.jp/article/jfst/15/3/15_2020jfst0018/_pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/ec/b6/ecb6eee5ace686b182b47e91a331bb6c4ed364cd.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1299/jfst.2020jfst0018"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

A Review on Turbine Trailing Edge Flow

Claus Sieverding, Marcello Manna
<span title="2020-05-20">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/qlzersn75ze6hkp3o4svseqyyq" style="color: black;">International Journal of Turbomachinery, Propulsion and Power</a> </i> &nbsp;
Whenever possible the outcome of a detailed code-to-code and code-to-experiments validation process is presented and discussed, on account of the adopted numerical method and turbulence closure.  ...  The paper presents a state-of-the-art review of turbine trailing edge flows, both from an experimental and numerical point of view.  ...  However, a comparison of the base pressure for the same Mach numbers before separation at the trailing edge for a fully expanding flow and a flow with shock boundary layer interaction on the suction side  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/ijtpp5020010">doi:10.3390/ijtpp5020010</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qfeftmy5sbh5jmc43nkt3uoojy">fatcat:qfeftmy5sbh5jmc43nkt3uoojy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200521022840/https://res.mdpi.com/d_attachment/ijtpp/ijtpp-05-00010/article_deploy/ijtpp-05-00010.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/3f/91/3f914176bb9ccde33263bc63d37944350f7271e7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/ijtpp5020010"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

15th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF)

<span title="">1993</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/wp3g5bo4ojczdinvl7cavuwkq4" style="color: black;">Computers &amp; Fluids</a> </i> &nbsp;
Professor BenWylie of the University of Michigan, besides teaching a summer course in Transient Flow Analysis in which the first author originally became aware of using the method of characteristics for  ...  Ron Dykhuizen of Sandia National Laboratories first informed us of the highly dependent nature of acoustic speed in water in a pipe on the elasticity of the pipe walls.  ...  It might be necessary to trigger on a coincidence signal corresponding at once to a correct anemometry signal and a correct pyrometry signal.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/0045-7930(93)90012-x">doi:10.1016/0045-7930(93)90012-x</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/5un7rizd3jcblmj2fgh5rciy3a">fatcat:5un7rizd3jcblmj2fgh5rciy3a</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170924075109/http://www.dtic.mil/get-tr-doc/pdf?AD=ADA365203" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/0045-7930(93)90012-x"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

NARMAX Identification Based Closed-Loop Control of Flow Separation over NACA 0015 Airfoil

Sohaib Obeid, Goodarz Ahmadi, Ratneshwar Jha
<span title="2020-06-29">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5bqnhgw7njc53i7otzqblwexk4" style="color: black;">Fluids</a> </i> &nbsp;
The reference signal signifies the condition of a fully re-attached flow, and it is determined based on the linearization of the original signal during open-loop control.  ...  A system identification approach based on Nonlinear Auto-Regressive Moving Average with eXogenous inputs (NARMAX) technique was used to predict nonlinear dynamics of the fluid flow and for the design of  ...  The method is based on quasi-linearization, which approximates a nonlinear system by a linear time-invariant (LTI) transfer function that depends on the amplitude of the input signal.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/fluids5030100">doi:10.3390/fluids5030100</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qrzfw3dj5bb35kxjkiiikjicyi">fatcat:qrzfw3dj5bb35kxjkiiikjicyi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200702193914/https://res.mdpi.com/d_attachment/fluids/fluids-05-00100/article_deploy/fluids-05-00100.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5b/b6/5bb619e6daa38a0060929a45dec4f5362fca421a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/fluids5030100"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

Structure and Dynamics of Premixed Swirl Flames at Elevated Power Density

Carson D. Slabaugh, Isaac Boxx, Stefanie Werner, Robert P. Lucht, Wolfgang Meier
<span title="">2016</span> <i title="American Institute of Aeronautics and Astronautics (AIAA)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/hn62hsbfendnte4nqztzwm7t2i" style="color: black;">AIAA Journal</a> </i> &nbsp;
A reconstructed time series elucidated the interactions of the reactant jets, the precessing vortex core, and the central recirculation bubble over a thermo-acoustic cycle.  ...  The unstable flame was found to exhibit a single spatio-temporally evolving flow structure consistent with a helical precessing vortex core.  ...  After the images were corrected for distortion, cropped, and scaled to engineering units, a white-field normalization was also applied to the OH*-CL and OH-PLIF images to correct for pixel-to-pixel sensitivity  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2514/1.j054294">doi:10.2514/1.j054294</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/yq6kw7gmj5dndfqgnvc3pj2uqa">fatcat:yq6kw7gmj5dndfqgnvc3pj2uqa</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190426130524/https://elib.dlr.de/104048/1/2016_Slabaugh_Boxx_AIAAJ_author_final.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/aa/02/aa021f04079a53f73ab6084e034d7a6bc691bfb0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2514/1.j054294"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part I: Background, Theory and Assessment Procedure Development

Eduard Doujak, Simon Stadler, Gerald Fillinger, Franz Haller, Michael Maier, Armin Nocker, Johannes Gaßner, Julian Unterluggauer
<span title="2022-02-04">2022</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/a2yvk5xhdnhpxjnk6yd33uudqq" style="color: black;">Energies</a> </i> &nbsp;
A particular challenge is posed, when the assessment methods are applied to old machines.  ...  , on prototype measurements in existing power plants.  ...  Red boxes show a positive Pearson correlation, i.e., both signals show the same tendency, while dark blue boxes show a reciprocal tendency of the signals.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/en15031148">doi:10.3390/en15031148</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6j6yk4q4yzc63cn2ot3cncz6xi">fatcat:6j6yk4q4yzc63cn2ot3cncz6xi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220502072324/https://mdpi-res.com/d_attachment/energies/energies-15-01148/article_deploy/energies-15-01148-v2.pdf?version=1644374911" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/dc/00/dc00fe4956c0963ed782503f9c9eefc7f1b50e0e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/en15031148"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

Announcements and Acknowledgments

Eli Livne
<span title="">2013</span> <i title="American Institute of Aeronautics and Astronautics (AIAA)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/6icinac4gbdpzask6p4e3mbtc4" style="color: black;">Journal of Aircraft</a> </i> &nbsp;
flig ILS based on In o a hybrid posi on GNSS and corrected with INS.  ...  Connected with a NRP-Z1 | power sensor, it is able to obtain signals from 200 pW to 200 mW in a frequency range from 70 to 350 MHz.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2514/1.c032252">doi:10.2514/1.c032252</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6zd7h7pedzda7ofbnk3zfmiqbe">fatcat:6zd7h7pedzda7ofbnk3zfmiqbe</a> </span>
<a target="_blank" rel="noopener" href="https://archive.org/details/sim_journal-of-aircraft_january-february-2013_50_1/page/1" title="read fulltext microfilm" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Archive [Microfilm] <div class="menu fulltext-thumbnail"> <img src="https://archive.org/serve/sim_journal-of-aircraft_january-february-2013_50_1/__ia_thumb.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2514/1.c032252"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

PIV Measurements Applied to Hydraulic Machinery: Cavitating and Cavitation-Free Flows [chapter]

Gabriel Dan, Monica Sanda
<span title="2012-05-23">2012</span> <i title="InTech"> The Particle Image Velocimetry - Characteristics, Limits and Possible Applications </i> &nbsp;
This method is based on the computation of the intensity gradient in both horizontal and vertical directions.  ...  Analyzing a sequence of synchronous velocity fields, von Karman vortex structures are detected, propagating in the guide-vanes channel, as well as flow tendency to re-enter the runner.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5772/35164">doi:10.5772/35164</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dgsjhesye5eg7o45uiw6mf7fpa">fatcat:dgsjhesye5eg7o45uiw6mf7fpa</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190502221024/https://cdn.intechopen.com/pdfs/37153.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/1e/9a/1e9a029ee9915452cbbc3b8ad4b011858116714e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5772/35164"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Mixing Measurements on an Equatorial Ocean Mooring

J. N. Moum, J. D. Nash
<span title="">2009</span> <i title="American Meteorological Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/l7zwmdzxdbfwveco4t3yu42uyi" style="color: black;">Journal of Atmospheric and Oceanic Technology</a> </i> &nbsp;
The effect of cable motions on spectral estimates of x T is evaluated and determined to result in acceptably small uncertainties (, a factor of two 95% of the time, based on 60-s averages).  ...  Motions due to vortex-induced vibrations caused by interaction of the mean flow with the cable are small (rms , 0.15 cable diameters) and unlikely to affect estimates of the temperature variance dissipation  ...  We are especially grateful to Mike McPhaden for his encouragement and support of this effort, and the TAO Project Office for continued support.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1175/2008jtecho617.1">doi:10.1175/2008jtecho617.1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/yf5snlnndbgolbov64zmkc2pea">fatcat:yf5snlnndbgolbov64zmkc2pea</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170818120434/http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/27860/MoumJN.CEOAS.MixingMeasurementsEquatorial.pdf?sequence=1" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/82/f0/82f0d235fc1bd3a7f0baac2ed492b157d1cbc720.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1175/2008jtecho617.1"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

A MEMS-Based Flow Rate and Flow Direction Sensing Platform with Integrated Temperature Compensation Scheme

Rong-Hua Ma, Dung-An Wang, Tzu-Han Hsueh, Chia-Yen Lee
<span title="2009-07-09">2009</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/taedaf6aozg7vitz5dpgkojane" style="color: black;">Sensors</a> </i> &nbsp;
This study develops a MEMS-based low-cost sensing platform for sensing gas flow rate and flow direction comprising four silicon nitride cantilever beams arranged in a cross-form configuration, a circular  ...  To compensate for the effects of the ambient temperature on the accuracy of the flow rate measurements, the output signal from the flow meter is compensated using the resistance signal generated by the  ...  flow meters [16] , electromagnetic flow meters [17] , and vortex flow meters based on a dual-wall DP method [18] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s90705460">doi:10.3390/s90705460</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/22346708">pmid:22346708</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC3274140/">pmcid:PMC3274140</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6asanjsptbfctouarly7v2of7i">fatcat:6asanjsptbfctouarly7v2of7i</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20151207035141/http://www.mdpi.com/1424-8220/9/7/5460/pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/66/75/6675d18e2b380522e6217f5afa85d09d9d536cbe.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s90705460"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3274140" title="pubmed link"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> pubmed.gov </button> </a>
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