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蠕动流动的卡雷奥流体中通过欧姆加热和霍尔电流产生的熵

Entropy Generation via Ohmic Heating and Hall Current in Peristaltically-Flowing Carreau Fluid.

作者信息

Noreen Saima, Abbas Asif, Hussanan Abid

机构信息

Department of Mathematics, Comsats University Islamabad, Tarlai Kalan Park Road, Islamabad 44000, Pakistan.

Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.

出版信息

Entropy (Basel). 2019 May 24;21(5):529. doi: 10.3390/e21050529.

DOI:10.3390/e21050529
PMID:33267243
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7515017/
Abstract

The core objective of the present study is to examine entropy generation minimization via Hall current and Ohmic heating. Carreau fluid considerations interpret the unavailability of systems' thermal energy (for mechanical work). The magneto hydrodynamic flow is in the channel, which is not symmetric. We have solved analytically the resulting nonlinear mathematical model. Moreover, physical exploration of important parameters on total entropy generation, temperature, and Bejan number is plotted and discussed. We observed that the generation of entropy takes place throughout the confined flow field = and = because of the viscous dissipation effect. In addition, reducing the operating temperature minimizes the entropy.

摘要

本研究的核心目标是通过霍尔电流和欧姆热来研究熵产生最小化。卡罗流体的考虑解释了系统热能（用于机械功）的不可用性。磁流体动力学流动发生在不对称的通道中。我们已经对由此产生的非线性数学模型进行了解析求解。此外，还绘制并讨论了关于总熵产生、温度和贝扬数的重要参数的物理探索。我们观察到，由于粘性耗散效应，在整个受限流场 = 和 = 中都会产生熵。此外，降低工作温度可使熵最小化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/17f1578d709a/entropy-21-00529-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/9f85bc9503e7/entropy-21-00529-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/51a65faa5b6a/entropy-21-00529-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/9adfb47f496c/entropy-21-00529-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/74889d2e1306/entropy-21-00529-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/04c1adfeeb6e/entropy-21-00529-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/e1a59e5bffe8/entropy-21-00529-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/0e86d2a373c4/entropy-21-00529-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/657d4d7e4e05/entropy-21-00529-g008a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/6b3ee24e31db/entropy-21-00529-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/91d53a8b58ee/entropy-21-00529-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/4b589d5fa3c2/entropy-21-00529-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/17f1578d709a/entropy-21-00529-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/9f85bc9503e7/entropy-21-00529-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/51a65faa5b6a/entropy-21-00529-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/9adfb47f496c/entropy-21-00529-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/74889d2e1306/entropy-21-00529-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/04c1adfeeb6e/entropy-21-00529-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/e1a59e5bffe8/entropy-21-00529-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/0e86d2a373c4/entropy-21-00529-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/657d4d7e4e05/entropy-21-00529-g008a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/6b3ee24e31db/entropy-21-00529-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/91d53a8b58ee/entropy-21-00529-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/4b589d5fa3c2/entropy-21-00529-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/349c/7515017/17f1578d709a/entropy-21-00529-g012.jpg

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A comparative study of Casson fluid with homogeneous-heterogeneous reactions.Casson 流体的均相-非均相反应比较研究。
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Influence of Hall Current and Viscous Dissipation on Pressure Driven Flow of Pseudoplastic Fluid with Heat Generation: A Mathematical Study.霍尔电流和粘性耗散对具有热生成的假塑性流体压力驱动流动的影响：一项数学研究。
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