Double-Pipe Heat Exchanger with Diffuser Channels with Gas and Liquid Coolants

IF 0.6 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2025-07-20 DOI:10.1134/S0015462825601032

V. G. Lushchik, A. I. Reshmin, K. S. Egorov

引用次数: 0

Abstract

Heat transfer in double-pipe heat exchangers with diffuser channels with small opening angles with gas and liquid coolants is numerically simulated. In the calculations, a three-parameter differential RANS turbulence model supplemented with a transfer equation for a turbulent heat flow is used. It is shown that due to the intensification of heat transfer in heat exchangers with diffuser channels, the amount of heat transferred from the hot coolant to the cold one increases compared to heat exchangers with channels with a constant cross section.

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带有气体和液体冷却剂扩散通道的双管热交换器

本文对带小开口角扩压通道的双管换热器中气体和液体冷却剂的传热进行了数值模拟。在计算中，采用了一个三参数微分RANS湍流模型和一个湍流热流的传递方程。结果表明，由于扩散管通道换热器的换热强化，从热冷却剂到冷冷却剂的换热量比采用等截面通道换热器的换热剂的换热量增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.