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Animating streamlines with orthogonal advancing waves

Chih-Kuo Yeh, Zhanping Liu, David L Kao, Tong-Yee Lee
2012 Information Visualization  
It enables dense, accurate visualization of complex real-world flows using animated streamlines of an elegant placement coupled with visually appealing orthogonal advancing waves.  ...  In this paper, we present a smooth cyclic variable-speed RAP animation model that emulates orthogonal advancing waves from a geometry-based flow representation.  ...  (b) With streamlines synchronized in luminance transition, neat orthogonal advancing waves are synthesized.  ... 
doi:10.1177/1473871612458507 fatcat:pk3jmnnx4zhs7oramz6jbt5mtu

Animating streamlines with repeated asymmetric patterns for steady flow visualization

Chih-Kuo Yeh, Zhanping Liu, Tong-Yee Lee, Pak Chung Wong, David L. Kao, Ming C. Hao, Chaomei Chen, Robert Kosara, Mark A. Livingston, Jinah Park, Ian Roberts
2012 Visualization and Data Analysis 2012  
This model is extended with inter-streamline synchronization in luminance varying along the tangential direction to emulate orthogonal advancing waves from a geometry-based flow representation, and then  ...  with evenly-spaced hue differing in the orthogonal direction to construct tangential flow streaks.  ...  (b) With streamlines synchronized in luminance transition, neat orthogonal advancing waves are synthesized.  ... 
doi:10.1117/12.911968 dblp:conf/vda/YehLL12 fatcat:2begge7b2ffxxewvs5at4qfg7u

CFD Post-processing in Unity3D

Matthias Berger, Verina Cristie
2015 Procedia Computer Science  
Waves are produced at time interval, meaning that at each new wave, animation of streamline is run from the starting point.  ...  This resulted in streamline animation that represents wind speed and direction at each point of time. Users are also allowed to set the number of waves to be visualized.  ... 
doi:10.1016/j.procs.2015.05.476 fatcat:qsfc36xrczbdhg6jr3bvaoxvy4

Easy integral surfaces

Tony McLoughlin, Robert S. Laramee, Eugene Zhang
2009 Computer Graphics International on - CGI '09  
We also introduce a novel interaction tool called a surface painter in order to address the perceptual challenges associated with visualizing 3D flow.  ...  Just as streamribbons extend streamlines to show curling flow behavior, timeribbons extend timelines to show oscillating (or wave-like) flow behavior, see Figure 13 .  ...  One of the elements of our algorithm is ensuring that after each integration step the local advancing front remains generally orthogonal to the downstream direction.  ... 
doi:10.1145/1629739.1629748 dblp:conf/cgi/McLoughlinLZ09 fatcat:eemitue3une5pmffro5jvvkhp4

I4Ocean: An Interactive Simulation and Scientific Visualization Platform for Marine Application

2016 Revista Técnica de la Facultad de Ingeniería Universidad del Zulia  
As an excellent tool for dealing with ocean issues, the marine geographic information system (MGIS) has been attached increasing importance by people.  ...  In this paper we detail how to implement marine application on i4Ocean platform through the simulation of ocean environment and 3D streamline visualization of irregular flow field data.  ...  SOME VISUALIZATION CASES 2D Streamline Visualization of Wind Field Data Realistic 2D evenly-spaced streamline for 2D wind field adopts four-order Runge-Kutta integration and cartesian orthogonal grid  ... 
doi:10.21311/001.39.5.23 fatcat:6r3hrzvl5rfjlbvawyi6bzuoei

Feature Extraction and Visualisation of Flow Fields [article]

Frits H. Post, Benjamin Vrolijk, Helwig Hauser, Robert S. Laramee, Helmut Doleisch
2002 Eurographics State of the Art Reports  
Usually very large data sets need to be processed, which often consist of multivariate data with a large number of sample locations, often arranged in multiple time steps.  ...  In separate sections we describe (a) direct visualisation techniques such as hedgehog plots, (b) visualisation using integral objects, such as streamlines, (c) texture-based techniques, including spot  ...  When working with sectional slices, the treatment of flow components orthogonal to slices requires some special care.  ... 
doi:10.2312/egst.20021053 fatcat:wzwnzdidrzelfersb57e4brfhm

Diffusion MR tractography of the heart

David E Sosnovik, Ruopeng Wang, Guangping Dai, Timothy G Reese, Van J Wedeen
2009 Journal of Cardiovascular Magnetic Resonance  
Changes in myocardial fiber architecture occur in ischemic heart disease and heart failure, and can be imaged non-destructively with diffusion-encoded MR.  ...  The streamline will follow the path of minimal angular difference between adjacent ODFs (voxels), with a threshold angle of 18-35° used to halt further propagation of the streamline.  ...  due to thinning and expansion of the infarct, residual myofibers with orthogonal helix angles frequently came into contact with one another (figures 8 and 9) [27] .  ... 
doi:10.1186/1532-429x-11-47 pmid:19912654 pmcid:PMC2781805 fatcat:lrtvyvqhxnh2xbq2xfxaz5wi2i

Tropical cyclogenesis in a tropical wave critical layer: easterly waves

T. J. Dunkerton, M. T. Montgomery, Z. Wang
2009 Atmospheric Chemistry and Physics  
in advance of the first.  ...  In shear flow, wave phase may be imagined to open or close like a Venetian blind; this process occurs in the two spatial dimensions orthogonal to the wave vector.  ... 
doi:10.5194/acp-9-5587-2009 fatcat:hokp3grl65em3cmv3krf6vriny

Important Advances In Technology: Echocardiography

Sherif F. Nagueh, Miguel A. Quiñones
2014 Methodist DeBakey Cardiovascular Journal  
It also opened the door for new advances such as harmonic imaging, automated border detection and quantification, 3-dimensional imaging, and speckle tracking.  ...  Echocardiography has evolved over the past 45 years from a simple M-mode tracing to an array of technologies that include two-dimensional imaging, pulsed and continuous wave spectral Doppler, color flow  ...  A more recent advancement combines 3D with strain imaging, allowing a 3D rendering of the strain vectors.  ... 
doi:10.14797/mdcj-10-3-146 pmid:25574341 pmcid:PMC4280238 fatcat:7pejrzceonh3dpp4hxim4rydty

An overview of passive RFID

Vipul Chawla, Dong Ha
2007 IEEE Communications Magazine  
This article discusses the basics of passive RFID technologies, with an emphasis on tags, for general readers and entrylevel practitioners.  ...  Innovative circuit designs combined with advances in silicon technology have made far-field passive tags, which consume only a few microwatts, practical.  ...  The United States is running the National Animal Identification System (NAIS), which promotes RFID for animal identification to improve animal health and to control disease outbreak.  ... 
doi:10.1109/mcom.2007.4342873 fatcat:lgfpqw64g5aixop3neas4zs4nu

Visual Analysis of Bioelectric Fields [chapter]

Xavier Tricoche, Rob MacLeod, Chris R. Johnson
2008 Mathematics and Visualization  
At the same time, a strong contrast is preserved along directions orthogonal to the vector field orientation, which results in intuitive pictures that mimic a dense coverage of the domain with thick streamlines  ...  Top row: Frames from an animation corresponding to isotropic white matter model. Bottom row: Frames of the animation obtained for anisotropic white matter model.  ... 
doi:10.1007/978-3-540-72630-2_12 fatcat:mpzg6ewpqra2tlcj3lzjcp7iqi

Tropical cyclogenesis in a tropical wave critical layer: easterly waves

T. J. Dunkerton, M. T. Montgomery, Z. Wang
2008 Atmospheric Chemistry and Physics Discussions  
in which flow streamlines not only undulate with the waves, but form a closed circulation in the lower troposphere surrounding the low.  ...  for tropical cyclogenesis resulting from tropical waves, their interaction with the mean flow, and with diabatic  ...  in advance of the first.  ... 
doi:10.5194/acpd-8-11149-2008 fatcat:67oxp6l3gfbmnd3adgptfa3u3y

Swimming hydrodynamics: ten questions and the technical approaches needed to resolve them [chapter]

George V. Lauder
2010 Animal Locomotion  
What is the three-dimensional structure of aquatic animal vortex wakes? 6. To what extent are observed propulsor deformations actively controlled? 7.  ...  Recent experimental and computational studies of swimming hydrodynamics have contributed significantly to our understanding of how animals swim, but much remains to be done.  ...  to future advances.  ... 
doi:10.1007/978-3-642-11633-9_1 fatcat:ml5riwsvpngalbrtwfeoetsx54

Swimming hydrodynamics: ten questions and the technical approaches needed to resolve them

George V. Lauder
2009 Experiments in Fluids  
What is the three-dimensional structure of aquatic animal vortex wakes? 6. To what extent are observed propulsor deformations actively controlled? 7.  ...  Recent experimental and computational studies of swimming hydrodynamics have contributed significantly to our understanding of how animals swim, but much remains to be done.  ...  to future advances.  ... 
doi:10.1007/s00348-009-0765-8 fatcat:ifuu5way7nb2jin6scdp3o2wbm

The three-dimensional structure of swirl-switching in bent pipe flow

Lorenz Hufnagel, Jacopo Canton, Ramis Örlü, Oana Marin, Elia Merzari, Philipp Schlatter
2017 Journal of Fluid Mechanics  
The flow field is analysed by three-dimensional proper orthogonal decomposition (POD) which for the first time allows the identification of the source of swirl-switching: a wave-like structure that originates  ...  Here we show that a three-dimensional wave-like structure is responsible for the low-frequency switching of the dominant Dean vortex.  ...  (b) Streamlines of the mean cross-flow showing the Dean vortices on a cross-section extracted at so = 0. An animated view of the setup is provided in the supplementary online material, movie1.m4v.  ... 
doi:10.1017/jfm.2017.749 fatcat:yp6uk3ekb5hk5ed5dub4e3th5q
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