Integral methods of calculation of heat transfer and drag under conditions of turbulent pipe flow of liquid of variable properties: Pulsating high-frequency flow

被引：0

作者：

E. P. Valueva

机构：

[1] Moscow Institute of Power Engineering (Technical University),

来源：

High Temperature | 2007年 / 45卷

关键词：

44.27.tg;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An integral method is suggested for approximate calculation of oscillation-period average heat transfer and drag under conditions of pulsating high-frequency flow of gas in a pipe with constant density of heat flux to the wall. It is found that the flow rate oscillation superimposed on the flow has little effect on the period average Nusselt number and coefficient of friction drag; these quantities may be calculated by the method developed for a steady-state flow of liquid of variable properties. The oscillation affects significantly the period average coefficient of hydraulic drag whose values increase with the amplitude of superimposed oscillation.

引用

页码：502 / 508

页数：6

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