EXPERIMENTAL AND COMPUTATIONAL STUDY OF TURBULENT FLOWS IN A CHANNEL WITH 2 PAIRS OF TURBULENCE PROMOTERS IN TANDEM

被引：69

作者：

LIOU, TM

CHANG, Y

HWANG, DW

机构：

[1] National Tsing Hua University, Hsin-Chu

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 03期

关键词：

D O I：

10.1115/1.2909405

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Measurements and computations are presented of mean velocity and turbulence intensity for an arrangement of two pairs of turbulence promoters mounted in tandem in developing channel flow. The Reynolds number (ReD) and the pitch ratio (PR) were varied in the range of 1.2 × 104 to 1.2 × 105 and 1 to 100, respectively. The three pitch ratios 5, 10, 15 were found to provide three characteristic flows which are a useful test of the computational models. The effects of PR on the reattachment lengths and the pressure loss as well as the influence of ReD on the reattachment length were documented in detail. It was found that PR = 10 was preferable to PR = 5 and PR = 15 from the standpoint of heat transfer enhancement. © 1990 by ASME.

引用

页码：302 / 310

页数：9

共 29 条

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