突起付き伝熱面の局所熱伝達率

概要

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The local heat transfer coefficient of a ribbed surface was experimentally measured on the base surface between two ribs. Two-dimensional square bars were attached to the lower wall of a parallel channel, the upper wall being a smooth wall. Experiments were carried out using air flow at atmospheric pressure and room temperature. The Reynolds number ranged from 3×10^3〜1×10^5, the ratio of pitch to height of the rib from 2.5 to 60 and the ratio of the height of the rib to the hydraulic diameter of the parallel channel from 0.0324 to 0.174. The distance from the position of the maximum local Nusselt number to the rib, and the local Nusselt number upstream and downstream from the maximum position were experimentally studied.
一般社団法人日本機械学会の論文
1990-04-25