乱流境界層の制御に関する基礎研究 : 凸曲率入口部の圧力急減少, 凸曲率面上の逆圧力こう配の各影響に関する境界層の見積もり

概要

論文の詳細を見る
A Simple type (Model 2) of the turbulent stress model developed by Launder, Reece and Rodi is adopted changing to a high-Reynolds-number turbulence model, to estimate the accelerated effects for double conditions: convex curvature, and adverse pressure gradient. To evaluate the accuracies of the model and the numerical computation method, the velocity profiles, turbulent stress profiles and quantities of turbulent energy production terms are calculated, and compared with the experimental values for CASE IIP. The condition CASE IIP consists of two conditions: convex curvature radius R=500mm, and weak adverse pressure gradient dc_p/dx=0.2674(1/m). As a result, it is clarified that the effects of the double conditions are more accelerated than the total of the individual effects, and the boundary layers on the convex surface are highly developed.
一般社団法人日本機械学会の論文
1990-08-25