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MHD bioconvection Darcy-Forchheimer flow of Casson nanofluid over a rotating disk with entropy optimization

机译：MHD Bioconvection在旋转磁盘上达到Casson Nanofluid的达西 - 学校流动，具有熵优化

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摘要

In this paper, we analyzed Darcy-Forchheimer three-dimensional bioconvection Casson nanofluid flow due to a rotating disk with entropy generation. The flow is considered with the outcome of thermal radiation and Arrhenius activation energy. For nondimensionality, we utilized the similarity transformations to deal with the problem equations. The homotopy analysis method is applied for the recreation of the modeled equations. The biothermal framework is investigated for all the implanted parameters whose impacts are observed through various graphs. There exist intriguing outcomes due to the impacts of various parameters on various distributions. Nanoparticles' concentration diminishes with expansion of the Schmidt parameter and Brownian motion constraint, whereas motile gyrotactic microorganisms' distribution diminishes with expansion of bioconvection Peclet and Lewis numbers. The entropy generation rate increases with the increase of the Brinkman number, Casson fluid parameters, and magnetic parameters. Enrichment in the Reynolds number (Re_r) leads to a decrease in the entropy generation rate. Moreover, Bejan number reduces with escalating values of the magnetic parameter, Brinkman number, and Casson fluid parameters. Bejan number (Be) is higher for larger Reynolds numbers and temperature difference parameter.
机译：在本文中，我们分析了由于具有熵生成的旋转盘而分析了达西 - 学生的三维生物保护碳纳米流体流。随着热辐射和Arhenius激活能量的结果考虑该流程。对于不值，我们利用了相似性转换来处理问题方程。同型分析方法应用于建模方程的娱乐。针对通过各种图表观察到的所有植入参数研究了生物热框架。由于各种参数对各种分布的影响，存在有趣的结果。纳米粒子的浓度随着施密特参数和布朗运动约束的扩大而减少，而动机旋转术微生物的分布减少了生物vection Peclet和Lewis数的扩展。随着Brinkman号，Casson流体参数和磁性参数的增加，熵产生速率增加。雷诺数（RE_R）中的浓缩导致熵产生率的降低。此外，BEJAN号码随着磁场，Brinkman号和Casson流体参数的升级值而减少。对于较大的雷诺数和温差参数，Bejan号码（be）更高。

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