HEAT-TRANSFER ENHANCEMENT IN THE OSCILLATING TURBULENT-FLOW OF A PULSE COMBUSTOR TAIL-PIPE

被引：67

作者：

DEC, JE ^{[1
]}

KELLER, JO ^{[1
]}

ARPACI, VS ^{[1
]}

机构：

[1] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1992年 / 35卷 / 09期

关键词：

Heat transfer enhancement - Oscillating flows - Wall heat flux;

D O I：

10.1016/0017-9310(92)90074-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat transfer rates in pulse combustor tail pipes and in other reversing, oscillating, turbulent flows have been found to be much higher than those of steady turbulent flow. To elucidate the mechanisms of the enhancement, the temperature and velocity fields, measured with two-line atomic fluorescence (TLAF) and laser Doppler velocimetry (LDV), respectively, are compared. Time-resolved wall heat fluxes and Nusselt numbers are also presented and discussed. Possible causes for the heat transfer enhancement in oscillating flows are reviewed and discussed in view of the data presented in this paper and the recent literature.

引用

页码：2311 / 2325

页数：15

共 29 条

[1]

BRAMLETTE TT, 1987, SAND878622

[2]

DEC J, 1986, 21 S INT COMB COMB I, P1737

[3] PULSE COMBUSTOR TAIL-PIPE HEAT-TRANSFER DEPENDENCE ON FREQUENCY, AMPLITUDE, AND MEAN FLOW-RATE [J].