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Gallery Images

Last Updated 6/3/15
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Eyes On The Gulf - Deepwater Horizon Oil Spill Visualization - Contributors: Rick Luettich, UNC-CH Institute of Marine Sciences; Joannes Westerink, University of Notre Dame, Computational Hydraulics Laboratory; Clint Dawson, The University of Texas at Austin: Institute for Computational Engineering and Sciences
Visualization by Adam Kubach and Karla Vega, Texas Advanced Computing Center, The University of Texas at Austin.

Abstract: The northern Gulf of Mexico was threatened by an oil spill from the Deep Water Horizon drilling platform in 2010. While oil was flowing into the gulf, researchers at The University of Texas at Austin and their collaborators used the ADvanced CIRCulation (ADCIRC) model to help predict the movement of oil along the gulf coast. The simulations were run daily producing a large amount of data that needed to be analyzed. To help the researchers gain insight into their data, we used open-source software that integrates geospatial and graphics toolkits along with TACC's large-scale visualization cluster, Longhorn, to visualize the results. Our main effort was focused on the overlay of the simulated oil movement and high-resolution satellite or aerial imagery, providing unique insight due to the visualization's ability to see the data in its geographic context. Eyes On The Gulf - Deepwater Horizon Oil Spill Visualization
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Global seismic wave propagation simulation - Contributors from ICES, The University of Texas at Austin: Carsten Burstedde, Omar Ghattas, James R. Martin, Georg Stadler, Lucas C. Wilcox Visualization by Gregory D. Abram, Texas Advanced Computing Center, The University of Texas at Austin. Abstract: Modeling the propagation of seismic waves through the earth is an essential first step to inferring the structure of earth's interior. The propagation of waves through the oceans and outer core is modeled with the acoustic wave equation, while the elastic wave equation is employed for the crust, mantle, and inner core. We create a computational mesh in parallel by partitioning the earth into warped hexagonal elements whose size is adapted to the local seismic wavelengths. We employ a highly parallel and scalable discontinuous Galerkin method to discretize the governing elastodynamics equations on the adapted mesh. The mesh is partitioned for parallel execution using a space-filling curve. The visualization corresponds to a simulation with a central source frequency of 1/85 Hz and contains about 100 million degrees of freedom. Acknowledgements: This work was supported by AFOSR grant FA9550-09-1-0608 and NSF grants CMS-1028889 and DMS-0724746. Computing time on TACC's Lonestar 4 system was provided by an allocation from TACC. Global seismic wave propagation simulation
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Investigation of flux rope formation via flow turbulence - . Researcher: Dr. Homayoun Karimabadi, Associate Research Scientist, University of California, San Diego From top to bottom: LIC of magnetic field, ion velocity, and electron velocity all colored by their out of plane component. Animations show the relationship of vortices in ion and electron flow as magnetic flux ropes form. Investigation of flux rope formation via flow turbulence
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NIMBioS - Contributors: Will Godsoe, National Institute for Mathematical and Biological Synthesis (NIMBioS), University of Tennessee Abstract: These maps show where certain species of trees are likely to be found within the Great Smoky Mountains National Park. Blue areas represent places that are not suitable for the tree to grow. As the color goes from green to yellow to red it represents a more and more suitable environment for the tree, and thus a greater chance of seeing this tree in this area. NIMBioS
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Shields to Maximum Mr Scott - Researchers use TACC supercomputers to simulate orbital debris impacts on spacecraft and fragment impacts on body armor. UT mechanical engineering professor Eric Fahrenthold and his team developed a fundamentally new way of simulating fabric impacts that captures the fragmentation of the projectiles and the shock response of the target. Running hundreds of simulations on TACC supercomputers, he and his students assisted NASA in the development of ballistic limit curves that predict whether a shield will be perforated when hit by a projectile of a given size and speed. The framework they developed also allows them to study the impact of projectiles on body armor materials and to predict the response of different fabric weaves upon impact. Shields to Maximum Mr Scott
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Simulating Local Nanoparticulate Drug Delivery Systems - Simulating Local Nanoparticulate Drug Delivery Systems in Patient-specific Coronary Arteries to Treat Atherosclerosis Contributors from ICES, The University of Texas at Austin: Shaolie Hossain and Thomas J.R. Hughes Visualization by Karla Vega, Texas Advanced Computing Center, The University of Texas at Austin. Abstract: A vast majority of heart attacks occur when there is a sudden rupture in the atherosclerotic plaque built-up in the coronary arteries, exposing its prothrombotic core materials (e.g., lipids) to the blood flow, forming blood clots that can cause blockage of the arterial lumen. The diseased arteries can be treated with drugs delivered locally (intravascularly injected) to these rupture-prone plaques termed "vulnerable plaques". In designing these local drug delivery devices, important issues regarding drug distribution and targeting need to be addressed to ensure device design optimization for maximum therapeutic efficacy. Therefore, a computational tool-set was developed to support the design and analysis of a catheter-based local drug delivery system that uses nanoparticles as drug carriers to treat vulnerable plaques and diffuse atherosclerosis. Simulations were run on a 3D patient-specific multilayered diseased coronary artery segment obtained directly from CT-imaging data and the effect of artery wall and plaque inhomogeneity on drug distribution was analyzed. The figure depicts a cross-section of the artery taken right through the vulnerable plaque with a large lipid core and a thin fibrous cap that is formed near the coronary artery bifurcation region. Results show the drug (in red) accumulating in the target region, that is, the lipid core of the vulnerable plaque, which is highly encouraging from a therapeutic point of view. The tool is now poised to be used in medical device industry to address important design questions such as, "given a particular desired drug-tissue concentration in a specific patient, what would be the optimum location, particle release mechanism, drug release rate, drug properties, and so forth, for maximum efficacy?" Simulating Local Nanoparticulate Drug Delivery Systems
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The Dopamine Transporter - Recent published research in the Journal of Clinical Investigation demonstrates how changes in dopamine signaling and dopamine transporter function are linked to neurological and psychiatric diseases, including early-onset Parkinsonism and attention deficit hyperactivity disorder (ADHD). The Dopamine Transporter
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