Advances in bioconvection of Casson nanofluids over a stretching sheet: Influence of thermal radiation and activation energy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F25%3A10258154" target="_blank" >RIV/61989100:27740/25:10258154 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1687850725003103?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1687850725003103?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jrras.2025.101598" target="_blank" >10.1016/j.jrras.2025.101598</a>
Alternative languages
Result language
angličtina
Original language name
Advances in bioconvection of Casson nanofluids over a stretching sheet: Influence of thermal radiation and activation energy
Original language description
Background: Nanofluids possess enhanced thermal properties, making them highly effective in improving heat transfer performance within thermal systems. Owing to their distinctive thermophysical characteristics, nanofluids have attracted considerable interest across various engineering applications. Purpose: This study investigates the magnetohydrodynamic (MHD) flow of Casson nanofluids over a stretching sheet, accounting for the effects of thermal radiation, activation energy, bioconvection, and motile microorganisms. The roles of Brownian motion and thermophoresis in heat and mass transfer are also analyzed. Method: ology: The governing nonlinear partial differential equations (PDEs) are reduced to a system of nonlinear ordinary differential equations (ODEs) through similarity transformations. These equations, along with the corresponding boundary conditions, are numerically solved using the bvp4c solver in MATLAB. Results: The analysis demonstrates that an increase in the Brownian motion parameter promotes thermal energy diffusion, whereas a higher Lewis number inhibits mass transfer. The Casson fluid parameter reduces the velocity boundary layer thickness, resulting in a 12.4 % rise in shear stress. Additionally, a higher Prandtl number leads to a 21.7 % decrease in thermal boundary layer thickness, thereby enhancing heat dissipation. The thermophoretic parameter exerts a pronounced effect on nanoparticle concentration, yielding a 15.3 % increase in concentration gradients. These results offer valuable insights into optimizing heat and mass transfer in nanofluid-based thermal systems.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Radiation Research and Applied Sciences
ISSN
1687-8507
e-ISSN
1687-8507
Volume of the periodical
18
Issue of the periodical within the volume
3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
101598
UT code for WoS article
001493811600001
EID of the result in the Scopus database
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