非等温乱流境界層中に建つ建物周りの流れ場・温度場・濃度場の測定(風工学(2),一般講演)

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  • Measurement of velocity, temperature and pollutant concentration around a building in non-isothermal flow

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In this study, we aim to provide experimental data required to validate Computational Fluid Dynamics (CFD) simulations of pollutant diffusion around buildings in non-isothermal flow. In order to obtain turbulent statistics including turbulent heat flux and turbulent concentration flux which are important quantities to evaluate turbulence models, we developed a simultaneous measurement system of fluctuating concentration, velocity and temperature. By using this measurement system, we measured wind velocity, temperature and concentration around a simple building simultaneously in non-isothermal flow. We examined mechanism of heat and concentration transfer in the flow fields. These reliable results will be available for the validation of CFD.

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