边界条件对窄槽壁上斜槽中紊流传热异常强化建模的影响

IF 1 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2024-01-26 DOI:10.1134/s0015462823601304

S. A. Isaev, A. G. Sudakov, D. V. Nikushchenko, V. B. Kharchenko, L. P. Iunakov

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引用次数: 0

摘要

摘要数值研究了第一和第二种边界条件对湍流低速气流流经窄槽热壁倾斜凹槽时异常传热强化预测特征的影响。结果表明，与热通量恒定条件相比，等温条件导致窄槽表面结构的热效率被大大低估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The Effect of Boundary Conditions on the Modeling of Anomalous Intensification of Turbulent Heat Transfer in an Inclined Groove in the Wall of a Narrow Channel

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The Effect of Boundary Conditions on the Modeling of Anomalous Intensification of Turbulent Heat Transfer in an Inclined Groove in the Wall of a Narrow Channel

Abstract

The effect of the boundary conditions of the first and second kind on the predicted characteristics of anomalous heat transfer intensification in the case of turbulent low-velocity air flow over an inclined groove in the hot wall of a narrow channel is numerically investigated. It is shown that the isothermality conditions lead to a considerable underestimation of the thermal efficiency of a surface structured with narrow grooves, compared with the conditions of heat flux constancy.

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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.