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

页码：459 / 465

页数：7