平行平板流路に置かれた角柱列まわりの流れと熱伝達

概要

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This experimental study was conducted on the heat transfer around two-dimensional blocks in a parallel duct. The dimensions of the blocks were 10mm(H)×30mm(L). The duct height(B)and the gap between the blocks (b) were varied (B=20 ; 30 mm, b=10,20,30mm). The duct Reynolds number Re_B ranged from 1920 to 11500. Local heat transfer coefficients and the pressure drop of the duct flow were measured. As a result, it became clear that with a constant pumping power, the greatest performance of heat transfer was determined to be at the dimension of B=20mm and b=20mm. Additionally, we investigated the effects of the upper stream heat flux on the adjacent downstream block. The experimental equation which predicted the reduction of the heat transfer coefficient of the downstream block was established.
一般社団法人日本機械学会の論文
1993-06-25