3 次元乱流数値解析と模型実験 : 数値解析手法を用いる室内空気分布予測法に関する研究その 2

概要

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The correspondence of the numerical analysis to the model experiment is clarified concerning Room-Air Distribution. The method of three-dimensional numerical analysis of turbulence flow in this paper uses the Two-Equation model of turbulence and the Marker-And-Cell method. The Two-Equation model is one in which eddy viscousity ν_t is determined from the transport equation of turbulence kinetic energy q and that for turbulence energy dissipation rate ε. The air flow observed in experiment and numerically analized is bounded cubic shape room model with supply outlet and exhaust inlet. Flow patterns are observed very precisely with special parallel hot-wire anemometer which can mesure three component of turbulent flow. The correspondence of prediction to experiment is satisfactory. Those are, (1) Close agreement between observed and calculated velocity vectors are obtained. (2) The predicted values of turbulence quantities distribute between one-second to five times of the observed values. From above results this prediction method are proved to be successful for that of Room-Air Distibution.
社団法人日本建築学会の論文
1980-12-30