Potential risks at an industrial site: A wind tunnel study |
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| Authors: | Z Janour K Jurcakova K Brych F Dittrt F Dittrich |
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| Institution: | 1. School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China;2. Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China;3. Guangzhou Urban Planning Design & Survey Research Institute, Urban Planning Research Center, Guangzhou, China |
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| Abstract: | A gaseous dispersion over a complex urban area after an accident with a leakage of chlorine in a chemical factory is investigated experimentally in a wind tunnel experiment under neutral conditions by using a Laser Doppler Anemometer and Analyser IREX. Diffusion fields in a turbulent boundary layer are simulated using a model of a landscape surrounding the factory at a scale of 1:1000. The obtained results indicate that morphology is one of the important parameters in studying atmospheric diffusion. The strong turbulent mixing inside the urban surface layer has created a rapid decrease in the surface concentrations. Moreover, the diffusion measured in these experiments may be used to develop and evaluate operational models to predict the dispersion of chlorine in a chemical factory. |
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