Subsonic Pressure Recovery in Cylindrical Condensers

被引：3

作者：

Busse, C. A. ^{[1
]}

Loehrke, R. I. ^{[2
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Ispra Estab, Proc Engn Div, I-21020 Ispra, VA, Italy

[2] Colorado State Univ, Dept Mech Engn, Ft Collins, CO 80523 USA

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1989年 / 111卷 / 1-4期

关键词：

Condensation; Heat Pipes and Thermosyphons;

D O I：

10.1115/1.3250710

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A method is presented for predicting laminar, subsonic flow in axisymmetric cylindrical heat pipe condensers. The method involves the use of the boundary layer approximation and a noncontinuous power series to describe the velocity profile under conditions including strong axial flow reversal. A comparison between laminar predictions and measurements indicates that transition to turbulent flow in the condenser begins when the absolute value of the radial Reynolds number exceeds 6. The condenser pressure recovery in the turbulent regime can be calculated from the momentum flow at the condenser inlet and an empirical wall-friction parameter.

引用

页码：533 / 537

页数：5

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