期刊
ADVANCES IN ENGINEERING SOFTWARE
卷 32, 期 9, 页码 717-730出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0965-9978(01)00020-5
关键词
virtual environment; virtual reality; visualization of fluid flow; object-oriented software; visual simulation; computational fluid dynamics
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. (C) 2001 Published by Elsevier Science Ltd.
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