... approximately 75 º. 0.04.0x10 7 8.0x10 7 1.2x1081.6x1015304560 75 Unpainted(E=0 .78 ) Fujii T. & Fujii M., 1 976 Sparrow & Gregg, 1956 Churchil & Ozoe, 1 973 Painted(E=0.96) ... Laboratory of Thermal Fluid Science and Engineering, MOE 2Key Laboratory of Strength and Vibration, MOE of Xi’an Jiaotong University in Xi’an, China 1. Introduction Using porous media to extend ... 1.110.2242fp p0.00 073 1 /Kddd Calmidi, 1998 Local heat transfer coefficient sfh 0.4 0. 37 df d0.5 0. 37 3sf d f d0.6 0. 37 3 5df d0 .76 / , 1 400.52 / , 40 100.26...