低レイノルズ数域における金網の流体抵抗

概要

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This paper describes some experimental values of flow resistance for wire nettings in low Reynolds number flows, such as air natural convections, providing basic thermal data necessary for designing electronic equipment casings. The experiment was designed to evaluate resistance coefficients, depending on the air temperature increased by the combined effect of motive powers for natural convection and flow resistance for wire nettings, because measurements for pressure losses and velocities in low Reynolds number flows using conventional methods are very difficult. As a result, the following relationship was obtained from a practical point of view: K=28(R<ed>・β^2/1-β)^<-0.95>, 0.4<R_<ed><95 where K is the resistance coefficient. R_<ed> is Reynolds number based on the wire diameter and β is porosity coefficient for wire nettings.
一般社団法人日本機械学会の論文
1986-12-25