Thermosolutal Marangoni Bioconvection of a Non-Newtonian Nanofluid in a Stratified Medium

Subrata Roy; Santanu Raut; Rishi Raj Kairi

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Thermosolutal Marangoni Bioconvection of a Non-Newtonian Nanofluid in a Stratified Medium

机译：Thermosolutal Marangoni Bioconvection of a Non-Newtonian Nanofluid in a Stratified Medium

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Bioconvection due to the movement of the micro-organism cells is universal and affects many ecological and biological processes, including infection, reproduction, and marine life ecosystems. The impact of the bioconvection is more significant in nanofluids. In the present problem, we investigate the Marangoni triply stratified bioconvective flow of non-Newtonian (second-grade) nanofluid with the presence of motile micro-organisms over a permeable inclined plate. The problem provides an analysis of the impact of second-order effects, namely, viscous dissipation, radiation, and chemical reaction, allowing a set of similarity transformations to convert the governing PDEs into coupled nonlinear DEs. Thereafter, Runge-Kutta Fehlberg's numerical method is employed to find the solution of the DEs for some chosen values of different flow influencing parameters. The impact of crucial parameters on the velocity, temperature, nanoparticles volume fraction, the motile density of micro-organisms, and the quantities of physical interest, namely, local Nusselt number, local Sherwood number, and local motile micro-organism density number are illustrated through the plots and tables. It is revealed that the second-grade fluid parameter indicates a prominent correlation with the Marangoni convection in the bioconvective transport mechanism. Also, the Marangoni convection is significant in bioconvective flows for large Peclet numbers.

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《Journal of Heat Transfer: Transactions of the ASME》 |2022年第9期|093601-1-093601-8|共8页
作者
Subrata Roy; Santanu Raut; Rishi Raj Kairi;
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作者单位

Department of Mathematics, Cooch Behar Panchanan Barma University;

Department of Mathematics, Mathabhanga College;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类热力工程、热机;
关键词
Second-grade fluid; Thermophoresis; Brownian motion; Microorganisms; Marangoni convection; Stratification; Bioconvection; Chemical reaction;

Thermosolutal Marangoni Bioconvection of a Non-Newtonian Nanofluid in a Stratified Medium

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