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Experimental and Numerical Modeling of Plume Dispersion in Stratified Atmospheres

Zhang Boyin and Li Changling (State Key Laboratory for Turbulence Research, Peking University, Beijing 100871) Sang Jianguo (Department of Geophysics, Peking University, Beijing 100871)  
Laboratory observation of plume dispersion and diffusion over complex topography in towing tank experiments with salt water as stratifying agent has proved to be a useful modeling means in the investigation of plume dispersion characteristics over complex terrain in stratified atmospheres Various phenomena of plume dispersion under conditions of elevated inversion were also usefully modeled Flow visualization technique made it possible to directly and clearly observe the flow field and the dye darkness can be quantified by means of image processing enabling the plume concentration field to be detected Numerical modeling of the same problem was also carried out and satisfactory agreement between the computed and the observed results were obtained
【Fund】: 国家自然科学基金 北京大学校长基金
【CateGory Index】: X16
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