Heat transfer in helium-xenon mixture flowing in straight and twisted tubes with square cross-section

被引：2

作者：

Makarov, M. S. ^{[1
]}

Naumkin, V. S. ^{[1
]}

机构：

[1] Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, 1 Ac Lavrentiev Ave, Novosibirsk, Russia

来源：

3RD ALL-RUSSIAN SCIENTIFIC CONFERENCE THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS WITH THE SCHOOL FOR YOUNG SCIENTISTS | 2018年 / 1128卷

基金：

俄罗斯科学基金会;

关键词：

BINARY-MIXTURES; NOBLE-GASES; RECOVERY;

D O I：

10.1088/1742-6596/1128/1/012020

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The article considers heat transfer in a flow of helium-xenon mixture in straight and twisted tubes with square cross sections. The main attention is paid to the heat transfer at large Reynolds numbers for tubes with small effective diameter. Such flows are often found in compact heat exchangers, assemblies of heat-generating elements, and energy-separating devices. CFD simulation data serve to analyze the influence of the cross-section shape and the twist step of the tube on hydraulic resistance and heat transfer. Various methods of generalization of heat exchange data are analyzed, taking into account the effect of gas compressibility on the flow acceleration in the tube and dissipative effects on the equilibrium wall temperature.

引用

页数：7

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