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Application of FLUENT on fine-scale simulation of wind field over complex terrain 被引量:2
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作者 Lei Li LiJie Zhang +3 位作者 Ning Zhang Fei Hu Yin Jiang WeiMei Jiang 《Research in Cold and Arid Regions》 2010年第5期411-418,共8页
The state-of-art Computational Fluid Dynamics (CFD) codes FLUENT is applied in a fine-scale simulation of the wind field over a complex terrain. Several numerical tests are performed to validate the capability of FL... The state-of-art Computational Fluid Dynamics (CFD) codes FLUENT is applied in a fine-scale simulation of the wind field over a complex terrain. Several numerical tests are performed to validate the capability of FLUENT on describing the wind field details over a complex terrain. The results of the numerical tests show that FLUENT can simulate the wind field over extremely complex terrain, which cannot be simulated by mesoscale models. The reason why FLUENT can cope with extremely complex terrain, which can not be coped with by mesoscale models, relies on some particular techniques adopted by FLUENT, such as computer-aided design (CAD) technique, unstructured grid technique and finite volume method. Compared with mesoscale models, FLUENT can describe terrain in much more accurate details and can provide wind simulation results with higher resolution and more accuracy. 展开更多
关键词 FLUENT Computational Fluid Dynamics (CFD) complex terrain wind field fine-scale simulation
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NUMERICAL SIMULATION OF TURBULENT DIFFUSION OVER A COMPLEX TERRAIN
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作者 桑建国 《Acta meteorologica Sinica》 SCIE 1989年第4期526-533,共8页
A set of hydrostatic atmospheric thermodynamic equations and diffusion equation are solved numerically to simulate the flow,temperature and concentration fields over the Fenhe River Valley,Shanxi Province. The results... A set of hydrostatic atmospheric thermodynamic equations and diffusion equation are solved numerically to simulate the flow,temperature and concentration fields over the Fenhe River Valley,Shanxi Province. The results are compared with the data observed in a tracer experiment carried out in February of 1984. The concentration distributions are calculated by three approaches:ordinary grid numerical model,nested grid model and Gaussian model.The comparison shows that the nested grid model gives the best results and needs only a little more computer time. 展开更多
关键词 NUMERICAL simulation OF TURBULENT DIFFUSION OVER A COMPLEX terrain LINE
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Theory and Practice of the Stereo-View on the CRT Screen
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作者 夏运钧 《Journal of Computer Science & Technology》 SCIE EI CSCD 1996年第5期519-528,共10页
Of the various kinds of research on the Virtual Reality and GIS, stereo-view is one of the key technologies . The following two aspects are covered in this paper. (1)Physiological fundamental of the natural binocular ... Of the various kinds of research on the Virtual Reality and GIS, stereo-view is one of the key technologies . The following two aspects are covered in this paper. (1)Physiological fundamental of the natural binocular stereo-vision, theory of 3D color TV and the stereo-view on the CRT screen are presented, especially the theory of widely adopted Time-Division System is introduced. (2) The preliminary practice for using the sterecrview technology on the screen to the terrain visual simulation is described, and the paper shows how to use 3DS to construct a movable real stereo terrain perspective by taking DTM data as the first hand information for the purpose of terrain visual simulation. 展开更多
关键词 STEREO-VISION stereo-view on the CRT screen FMSS LCD shutter glasses time-division 3D color TV terrain visual simulation
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