回転曲り正方形管内の流れと熱伝達 : 第1報, 正回転管の場合の数値解析

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rights: 本文データは社団法人日本機械学会の許諾に基づき、CiNiiから複製したものであるFully developed laminar forced convection heat transfer in curved rectangular ducts rotating at a constant angular velocity about an axis through the center of curvature of ducts is studied. Thermal boundary conditions of fluid flow are assumed to be subject to uniform wall heat flux. Navier-Stokes and energy equations are solved by the finite-difference method for Pr=0.7. The case for the positive rotation of a duct is considered. Velocity and temperature fields are obtained for various rotation rates and Reynolds numbers. A double-vortex secondary flow appears at a low to moderate rotation rate and Re number. It is found that an additional pair of vortices appeared and disappeared for a higher range of Reynolds numbers under the influence of centrifugal and Coriolis forces. The friction factors and Nusselt numbers are also obtained. The numerical results in regard to the friction factors are in good agreement with experimental results obtained by other researchers.
一般社団法人日本機械学会の論文
1988-03-25