AIR JET IMPINGEMENT HEAT TRNASFER AT LOW NOZZLE-TO-PLATE SPACINGS UNDER A FIXED PUMPING POWER CONDITION

被引：0
|
作者：
Choo, Kyo Sung [1 ]
Kim, Sung Jin [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mech Engn, Taejon 305701, South Korea
来源：
HT2009: PROCEEDINGS OF THE ASME SUMMER HEAT TRANSFER CONFERENCE 2009, VOL 2 | 2009年
关键词：
heat transfer characteristics; impinging jet; nozzle-to-plate spacing; THERMAL-CHARACTERISTICS; MASS-TRANSFER; FLUID-FLOW; EXCHANGER; SUBJECT; COST; SINK; GAS;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Heat transfer characteristics of an impinging air jet are experimentally investigated under a fixed pumping power condition. The effects of dimensionless pumping power on the Nusselt number are considered. The focus is on cases where the nozzle-to-plate spacing is equal to or less than one nozzle diameter. The results show that the Nusselt number is independent of the nozzle-to-plate spacing under fixed pumping power conditions, while the Nusselt number increases with decreasing the nozzle-to-plate spacing under fixed flow rate conditions. Based on the experimental results, new correlations for the stagnation and average Nusselt numbers of the impinging jet are developed as a function of the pumping power alone.
引用
收藏
页码：459 / 465
页数：7
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