Effect of aiding buoyancy on heat transfer from an isothermal square cylinder in power-law fluids

IF 0.5 4区工程技术 Q4 ENGINEERING, CHEMICAL

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa Pub Date : 2023-07-20 DOI:10.24425/cpe.2022.140830

P. Mishra, Lubhani Mishra, A. Tiwari

引用次数: 0

Abstract

The aim of the present study was to explore the inﬂuence of aiding buoyancy on mixed convection heat transfer in power-law ﬂuids from an isothermally heated unconﬁned square cylinder. Extensive numerical results on drag coeﬃcient and surface averaged values of the Nusselt number are reported over a wide range of parameters i.e. Richardson number, 0 . 1 ≤ Ri ≤ 5, power-law index, 0 . 4 ≤ 𝑛 ≤ 1 . 8, Reynolds number, 0 . 1 ≤ Re ≤ 40, and Prandtl number, 1 ≤ Pr ≤ 100. Further, streamline proﬁles and isotherm contours are presented herein to provide an insight view of the detailed ﬂow kinematics.

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幂律流体中辅助浮力对等温方柱体传热的影响

本研究的目的是探讨辅助浮力对幂律流体在等温加热的无约束方形圆柱体中混合对流换热的影响。在广泛的参数范围内，如理查德森数，0，报告了阻力系数和努塞尔数的表面平均值的大量数值结果。1≤Ri≤5，幂律指数，0。4≤𝑛≤1。8，雷诺数为0。1≤Re≤40，普朗特数1≤Pr≤100。此外，本文还提出了流线轮廓和等温线轮廓，以提供详细的流动运动学的洞察力。

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

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa 工程技术-工程：化工

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The content, aim and scope of the proposals should comply with the main subject of the journal, i.e. they should deal with mathematical modelling and/or experimental investigations on momentum, heat and mass transfer, unit processes and operations, integrated processes, biochemical engineering, statics and kinetics of chemical reactions. The experiments and modelling may cover different scales and processes ranging from the molecular phenomena up to production systems. The journal language is grammatically correct British English. Chemical and Process Engineering publishes: i) full text research articles, ii) invited reviews, iii) letters to the editor and iv) short communications, aiming at important new results and/or applications. Each of the publication form is peer-reviewed by at least two independent referees.