Visualization of CFD results in immersive virtual environments |
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| Affiliation: | 1. Advanced Science and Automation Corp., Hampton, VA, USA;2. Center for Advanced Engineering Environments, Old Dominion University, Mail Stop 201, NASA Langley Research Center, Hampton, VA, USA;1. School of Energy, Soochow University, Suzhou, 215006, China;2. Troops 63921 of the Chinese People''s Liberation Army, Beijing, 100094, China;3. Wuxi Research Institute of Petroleum Geology, Sinopec Petroleum Exploration & Production Research Institute, Sinopec, Wuxi, 214126, China;1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;2. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;2. School of Civil, Environmental and Mining Engineering, The University of Western Australia, Crawley, WA 6009, Australia |
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| Abstract: | An object-oriented event-driven immersive virtual environment (VE) is described for the visualization of computational fluid dynamics (CFD) results. The VE incorporates the following types of primitive software objects: interface objects, support objects, geometric entities, and finite elements. The fluid domain is discretized using either a multi-block structured grid or an unstructured finite element mesh. The VE allows natural ‘fly-through’ visualization of the model, the CFD grid, and the model's surroundings. In order to help visualize the flow and its effects on the model, the VE incorporates the following objects: stream objects (lines, surface-restricted lines, ribbons, and volumes); colored surfaces; elevation surfaces; surface arrows; global and local iso-surfaces; vortex cores; and separation/attachment surfaces and lines. Most of these objects can be used for dynamically probing the flow. Particles and arrow animations can be displayed on top of stream objects. Primitive response quantities as well as derived quantities can be used. A recursive tree search algorithm is used for real-time point and value search in the CFD grid. |
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