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An Acoustics Intensity Based Investigation οf the Energy Flow Over the Barriers

S. Weyna
2010 Acta Physica Polonica. A  
tested area and structures.  ...  The differences, if appearance, mainly result from the fact that theoretical forecasting uses far too big simplifications or that it is impossible to obtain proper data on real physical features of the  ...  It requires a numerical simulation with FSI (Fluid Structure Interaction) methods.  ... 
doi:10.12693/aphyspola.118.172 fatcat:j4u7ftkaqnfullvuhbhkrf4nbq

A Computationally-Efficient Numerical Model to Characterize the Noise Behavior of Metal-Framed Walls

Arun Arjunan, Chang Wang, Martin English, Mark Stanford, Paul Lister
2015 Metals  
Such models should also demonstrate effective Fluid-Structure Interaction (FSI) along with acoustic-fluid coupling to simulate a realistic scenario.  ...  It is considered that the presented numerical model can be used to effectively visualize the noise behaviour of advanced materials and multi-material structures.  ...  Arjunan conducted the numerical study, analyzed the results and prepared the manuscript. C.J. Wang reviewed the numerical data and methodology. M.  ... 
doi:10.3390/met5031414 fatcat:lae3qqez7rfb5a5u4gnpc64kbu

Framework Technologies and Methods for Large Data Visualization [article]

W. T. Hewitt, Ian Curington
2000 Eurographics State of the Art Reports  
Aero Aero--acoustics acoustics ! ! Ice Protection Ice Protection ! ! Space Propulsion Space Propulsion ! ! Vehicle Mechanics Vehicle Mechanics ! !Structures and Materials Structures and Materials !!  ...  Spatial Queries and filtering on distributed Spatial Queries and filtering on distributed data collections data collections --Spatial subset and filter (ADR') Spatial subset and filter (ADR') - -Load  ... 
doi:10.2312/egt.20001030 fatcat:ahyje5jwprcfdg27wixjrfq6py

Acoustic Intensity Imaging Methods for in-situ Wave Propagation

Stefan Weyna
2010 Archives of Acoustics  
Visualization of research results, which is unavailable by conventional acoustics metrology, may be shown in the form of intensity streamlines in space, as a shape of floating acoustic wave and intensity  ...  This attribute of intensity method can also validate the results of CFD/CAA numerical modeling which is very important in any industry acoustic investigations.  ...  It requires a numerical simulation with FSI (Fluid Structure Interaction) methods.  ... 
doi:10.2478/v10168-010-0025-1 fatcat:um62hvjl6jai5ffgdewzdmmjcy

Accuracy of Carotid Strain Estimates From Ultrasonic Wall Tracking: A Study Based on Multiphysics Simulations and In Vivo Data

A. Swillens, G. De Santis, J. Degroote, L. Lovstakken, J. Vierendeels, P. Segers
2012 IEEE Transactions on Medical Imaging  
The model includes the tissue surrounding the vascular wall, which is a stabilizing factor for the fluid-structure interaction simulation but also results in a more realistic ultrasonic visualization of  ...  interface, and the structural problem is solved for a given stress distribution on the wet side of the structure).  ... 
doi:10.1109/tmi.2011.2165959 pmid:21878412 fatcat:cygywjwfl5gvtopgcduwncyqza

ExaFSA: Parallel Fluid-Structure-Acoustic Simulation [chapter]

Florian Lindner, Amin Totounferoush, Miriam Mehl, Benjamin Uekermann, Neda Ebrahimi Pour, Verena Krupp, Sabine Roller, Thorsten Reimann, Dörte C. Sternel, Ryusuke Egawa, Hiroyuki Takizawa, Frédéric Simonis
2020 Lecture Notes in Computational Science and Engineering  
and scalability of the flow and acoustic solvers FASTEST and Ateles on vector architectures by means of code transformation, (e) physically correct information transfer between near-field acoustic flow  ...  Whereas we made a first proof of concept for a three-field simulation (elastic structure, surrounding turbulent acoustic flow in the near-field, and pure acoustic wave propagation in the far-field) in  ...  program under the Marie Sklodowska-Curie grant agreement No 754462, and compute time granted on the LRZ SuperMUC system and the HLRS HazelHen system.  ... 
doi:10.1007/978-3-030-47956-5_10 fatcat:v4jlceviunah7adlgtzo5mhknu

Physical Acoustics Analysis of Composite Wooden Panel and Room by Computational Modeling

Ö. Karaçali
2021 Acta Physica Polonica. A  
The structural modeling-FEA has become the leading technique with the fluid-structure interaction (FSI) used to systematically analyze multi-physics events of how fluids and structures interact for acoustics  ...  The displacement-based nonlinear Lagrangian method was used for the acoustic fluid and material structure interaction behavior by FEA to manage the problem of FSI.  ...  results by using geometric data, and acoustic pressure, velocity data [10] .  ... 
doi:10.12693/aphyspola.139.483 fatcat:lhwgtrdxnrezvlqnz7y5c7epye

A Metric and Visualization of Completeness in Multi-Dimensional Data Sets of Sensor and Actuator Data Applied to a Condition Monitoring Use Case

Iris Weiß, Birgit Vogel-Heuser
2021 Applied Sciences  
In order to reveal the structure of such multi-dimensional data sets and detect deficiencies, this paper derives a data quality metric and visualization.  ...  It is shown that the state-of-the-art metrics and visualizations cannot detect deficiencies of completeness in multi-dimensional data sets.  ...  Data Availability Statement: Restrictions apply to the availability of these data. Data was obtained from an industrial partner and is not publicly available.  ... 
doi:10.3390/app11115022 fatcat:scddq7ccsvbnjjtuyura6p25gq

Vibroacoustic Analysis of a Refrigerator Freezer Cabinet Coupled with an Air Duct

Onur Çelikkan, Haluk Erol
2017 Advances in Acoustics and Vibration  
air duct using the Acoustic Fluid-Structure Interaction (AFSI) technique.  ...  In this study, the vibration and acoustic interactions between the structure and the cavity inside the freezer cabinet were investigated.  ...  The results of the CFD analysis are applied to the structural analysis as an initial condition. The partitioned approach is used for the simulation of the fluid-structure interaction.  ... 
doi:10.1155/2017/1960898 fatcat:nt3lba7lcna7vdqtp3o4aavunq

Segmentation algorithms for ear image data towards biomechanical studies

Ana Ferreira, Fernanda Gentil, João Manuel R. S. Tavares
2012 Computer Methods in Biomechanics and Biomedical Engineering  
Acoustic-structural coupled finite element analysis for sound transmission in human ear-pressure distributions. Med Eng Phys. 28(5):395-404. Gan RZ, Wang X. 2007.  ...  The cochlea contains tubes filled with fluid, inside one of these tubes tiny hair cells pick up the vibrations and convert them into nerve impulses.  ...  of tinnitus", with references PTDC/EEA-CRO/103320/2008 and PTDC/SAU-BEB/104992/2008, respectively, financially supported by Fundação para a Ciência e a Tecnologia, in Portugal.  ... 
doi:10.1080/10255842.2012.723700 pmid:22994296 fatcat:tqidiwytr5emlbi54w5ljyxg3u

Parallel Partitioned Simulations of Real World's Coupled Problems

S. Yoshimura, T. Yamada
2016 Proceedings of the Indian National Science Academy  
We have been developing a parallel partitioned simulation system to solve large scale real world's coupled problems.  ...  This paper describes some key technologies of the system, and demonstrates its practical performance and effectiveness through solving various kinds of real world's problems.  ...  Interaction, Magneto-Structure Interaction and Structure-Structure Interaction.  ... 
doi:10.16943/ptinsa/2016/48409 fatcat:wdqwjhagv5hcppihn6fioctl5a

Application of fluid-structure coupling to predict the dynamic behavior of turbine components

B Hübner, U Seidel, S Roth
2010 IOP Conference Series: Earth and Environment  
In hydro turbine design, fluid-structure interaction (FSI) may play an important role.  ...  Examples are the calculation of natural frequencies and response spectra in water using an acoustic fluid formulation, the determination of flow induced damping effects by means of partitioned FSI including  ...  fluid-structure interaction based on a monolithic finite element formulation applies.  ... 
doi:10.1088/1755-1315/12/1/012009 fatcat:jygkjnbsi5a7ba3we5lkrbmx3u


Stefan Weyna
2014 Mechanics and Control  
As a result of research, the visualization analysis of the sound intensity flux in 3D space is shown as flow wave reactions on the presence of obstacles with different shapes.  ...  The results of these studies contribute to the theory of sound and general knowledge about the physics of flow acoustic phenomena, especially in the near acoustic field.  ...  In such cases the sound intensity studies carried out on physical models can serve to link theory with practice, by imposing limits on allowable reductions of the fluid-structure interactions (FSI) effects  ... 
doi:10.7494/mech.2014.33.1.26 fatcat:5x2vvyfxpfbjvjojq5hrhkscje

Spatial domain wavelet design for feature preservation in computational data sets

G. Craciun, Ming Jiang, D. Thompson, R. Machiraju
2005 IEEE Transactions on Visualization and Computer Graphics  
High-fidelity wavelet transforms can facilitate visualization and analysis of large scientific datasets.  ...  We present a set of filter design axioms in the spatial domain, which ensure that certain feature characteristics are preserved from scale to scale, and that the resulting filters correspond to wavelet  ...  ACKNOWLEDGMENTS This work is partially funded by the NSF under the Large Data and Scientific Software Visualization Program (ACI-9982344), an NSF Early Career Award (ACI-9734483), and by an Information  ... 
doi:10.1109/tvcg.2005.35 pmid:15747638 fatcat:v4l6qrzfi5ecblhi46wdmwlwnm

Artificial Intelligence Methodologies for Data Management

Joel Serey, Luis Quezada, Miguel Alfaro, Guillermo Fuertes, Manuel Vargas, Rodrigo Ternero, Jorge Sabattin, Claudia Duran, Sebastian Gutierrez
2021 Symmetry  
on the most outstanding and relevant works to date.  ...  The methodology used to study the documents was content analysis; the basic terminology of the study corresponds to machine learning, artificial intelligence, and big data between the years 2017 and 2021  ...  [27] developed a conceptual framework of companies' capabilities to operate with "one voice" to offer fluid, harmonious, and reliable interactions through various interfaces.  ... 
doi:10.3390/sym13112040 fatcat:dtcfzqmka5byxhupaennbb77xi
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