Direct Numerical Simulation and Experimental Results of a Turbulent Channel Flow with Pin Fins Array

被引：0

作者：

Perez, B. Cruz ^{[1
]}

Medina, J. Toro ^{[1
]}

Sundaram, N. ^{[2
]}

Thole, K. ^{[2
]}

Leonardi, S. ^{[1
]}

机构：

[1] Univ Puerto Rico, Dept Mech Eng, Mayaguez, PR 00708 USA

[2] Penn State Univ, Dept Mech & Necl Engn, University Pk, PA 16802 USA

来源：

DIRECT AND LARGE-EDDY SIMULATION VII | 2010年 / 13卷

关键词：

HEAT-TRANSFER; PRESSURE-DROP;

D O I：

10.1007/978-90-481-3652-0_9

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Low aspect ratio pin fins are used to improve the heat transfer in turbine blades. The present study compares experimental pressure drop measurements for several pin fins arrays with DNS results. For arrays greater than 6 rows the friction factor becomes independent of the number of rows. DNS shows that this is due to the form drag accounting for approximately the 90% of the total drag.

引用

页码：65 / +

页数：2

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