管芯式散热器传热与阻力特性试验研究  

Experimental Research on Performance of Heat Transfer and Pressure Drop for Tube-Core-Fin Radiator

作　　者：关颖[1] 刘震炎[2] 东雪青[3] 席明智[3] 崔洪江[1] 

机构地区：[1]大连交通大学,大连116028 [2]上海交通大学 [3]内蒙古工业大学

出　　处：《内燃机工程》2005年第6期51-54,共4页Chinese Internal Combustion Engine Engineering

摘　　要：鉴于目前汽车管芯式散热器的研究较少,根据JB2293—78试验方法对其进行了传热与阻力试验研究。利用多参数优化拟合计算得出本次试验雷诺数范围内的管芯式散热器试件空气侧对流换热系数和阻力系数的准则关系式。试验结果表明:准则关系式关联精度较好;水管排数对该类型散热器试件换热性能和空气阻力具有较大的影响,四排管时散热器的换热性能最好。There were lack of researches in the tube-core-fin radiators and so in this paper the experimental research on heat transfer and pressure drop performance of the tube-core-fin radiator was carried out by the nation standard JB2293-78. The criterions equations of heat transfer and drop performance of the type radiator were obtained in the Reynolds number range of this test through optimizing method. Test resuits show that the relating precision is good, the number of tube rows of the radiator can affect heat transfer and air pressure drop, and the radiator with four tube rows had the best heat transfer performance.

关 键 词：内燃机 管芯式散热器 对流换热系数 阻力 准则方程 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]