Abstract
This chapter firstly describes the necessity of validation study of CFD in relation to pollutant/thermal dispersion in urban areas by comparing CFD results with reliable wind tunnel experimental data. The second section explains a technique for simultaneously measuring fluctuating velocity, temperature, and concentration in non-isothermal turbulent layers. The third section introduces examples of pollutant/thermal dispersion experiments in non-isothermal turbulent boundary layers with different atmospheric stability conditions. This measurement technique was used for the wind tunnel experiments. The fourth section reviews various methods for generating inflow turbulence for large eddy simulation and shows some calculated results by large eddy simulation of pollutant/thermal dispersion that target the wind tunnel experiments mentioned above with the experimental data.
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Acknowledgments
The author is greatly indebted to his postdoctoral researchers, PhD students, and master students for developing the measuring technique and conducting wind tunnel experiments and CFD simulations included in this chapter. Related members of this chapter are as follows.
Hideyuki Tanaka, Taich Shirasawa, Guoyi Jiang, Tingting Hu, Tsuyoshi Kobayashi, Koudai Katada, and Keisuke, Nomura.
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Yoshie, R. (2016). Wind Tunnel Experiment and Large Eddy Simulation of Pollutant/Thermal Dispersion in Non-isothermal Turbulent Boundary Layer. In: Tamura, Y., Yoshie, R. (eds) Advanced Environmental Wind Engineering. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55912-2_9
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DOI: https://doi.org/10.1007/978-4-431-55912-2_9
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