Concentration prediction for meandering plumes based on probability theory |
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| Institution: | 1. State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People''s Republic of China, Guangzhou 510530, PR China;2. Biological and Environmental Science and Engineering Division, Water Desalination and Reuse Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia;3. R&D Department, Shenzhen Typhur Technology Co., Ltd, Shenzhen 51800, China |
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| Abstract: | A procedure is proposed for the calculation of the probability function of the concentration of gas in a pollutant plume that is meandering. As input, the velocity field must be known as well as the plume behaviour in the presence of turbulence but without meandering. It is assumed that the high-frequency turbulence and the low-frequency fluctuations that cause meandering are independent and can be superposed. Small-scale experiments are described which simulate meandering, in which these assumptions are verified. The concentration measurements in these experiments are also compared with the predictions using this calculation method. The agreement of the calculation with experiments shows the usefulness of this type of calculation. |
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