K-1826 温度場を伴う回転チャネル流のDNSと構造解析(G06-7 熱工学(7) : 乱流)(G06 熱工学部門一般講演)

概要

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Direct numerical simulation (DNS) of a fully developed turbulent rotating channel flow with heat transfer has been performed using the spectral method, where we show how the rotation affects the velocity and thermal fields. In the rotating channel flow, turbulence energy is transported from the pressure side to the suction side by the action of pairs of streamwise vortices generated in the center of channel by the rotational effect. In the thermal field, temperature variance decreases on the pressure side and increases on the suction side. And, in the case of the higher rotation number at a low Reynolds number, turbulence is enhanced on the pressure side and suppressed on the suction side, which leads to relaminarization.
一般社団法人日本機械学会の論文
2001-08-22