平面噴流の数値解析 : 建築環境工学における流れの数値解析に関する研究(第2報)

概要

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This paper is the second report of the study on the numerical prediction method of an air flow in ducts, rooms, and around buidings, in the field of architectural environmental engineering. In the previous paper, we reported that we surveyed the two equation model of turbulence and the marker and cell method, performing a model experiment and a numerical prediction of the room air flow including an outlet an inlet, and a heated wall, and that the outcome of the experiment and the prediction as to the mean velocity and temperature distribution agreed fairly well. In this paper, we dealt especialcy with plane jet, and compared a numerical prediction with the experiment by L. J. S. Bradbury in order to examine the appropriateness of the prediction as to the mean values and the higher moments of statististcal values of turbulence. We obtained the result that the both the prediction and the outcome of the experiment agreed well in the distribution of not only the mean velocity but the static pressure, the turbulent energy, the viscous dissipation, the turbulent shear stress, and the turbulent energy balance. It can be considered that this type of prediction method is practically of use.
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