Thermosolutal performance of a non-Newtonian Casson fluid in a curvilinear porous baffled chamber with irreversibility and various heating strategies

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

This study aims to investigate the thermosolutal performance and irreversibility behavior of a non-Newtonian Casson fluid in curvilinear porous chamber with baffles under various heating strategies. Thermosolutal convection, driven by temperature solute concentration gradients, plays critical role industrial processes such as electronic cooling, thermal storage, heat exchangers. The novelty this work lies combined use strategically placed within enclosure, alongside non-uniform sinusoidal applied lower boundary, utilizing multifrequency spatial profiles for first time. inclusion significantly enhances control over flow structures transfer efficiency. numerical analysis explores effects key parameters, including Lewis number (1≤Le≤20), Darcy (10−4≤Da≤10−2), Rayleigh (104≤Ra≤106), parameter (0.1≤β≤10), well amplitude, frequency, offset heating. In spite solving Navier–Stokes, thermal, species transport equations using higher-order compact scheme, objective is examine how these parameters influence behavior, transfer, kinetic energy (K.E.), entropy generation. variation (β) from 0.1 10 leads significant enhancements mass 44.01%, 43.85%, 210.75%, respectively, while simultaneously reducing total generation 4.92%.

Language: Английский

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Double diffusive thermogravitational convection in a convex U-shaped porous chamber filled with radiative ternary hybrid nanoliquid

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

This research deals with the intricate dynamics of double diffusive thermogravitational convection within a convex U-shaped porous chamber and sheds light on use radiative ternary hybrid nanoliquid. In this configuration, lower flat boundary is assumed to be thermally hot densely concentrated while curved lateral boundaries remain cold dilute. The other enclosure are kept under adiabatic conditions. governing Navier–Stokes equations along thermal species effectively solved by employing higher order compact technique. developed in-house program has been rigorously verified against experimental computational benchmark results. meticulously examines impact several pivotal parameters, including Lewis number (1≤Le≤20), buoyancy ratio (0≤N≤10), Darcy (10−4≤Da≤10−2), Rayleigh (104≤Ra≤106), volumetric heat source/sink coefficient (−10≤q≤10), radiation parameter (1≤Rd≤5), aspect (0.2≤AR≤0.6), solid particles concentration (0.0≤ϕthnp≤0.04) nanofluid. findings eloquently portrayed through graphical representations showcasing streamlines, iso-solutals, isotherms, dimensionless Nusselt (Nuavg) Sherwood (Shavg) parameters. Our investigation demonstrates that nanofluid outperforms both mono nanofluids in facilitating diffusion processes. Moreover, optimal transfer efficiency achieved conditions characterized an AR = 0.2, Ra=106, Da=10−2, N 10, Le 1, volume fraction ϕthnp=0.04.

Language: Английский

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Velocity slip and temperature jump effects on entropy generation of MHD second-grade hybrid nanofluid in Jeffery-Hamel flow

International Journal of Numerical Methods for Heat &amp Fluid Flow, Journal Year: 2024, Volume and Issue: 34(10), P. 3637 - 3658

Published: July 27, 2024

Purpose This paper aims to model and analyze Jeffery Hamel’s channel flow with the magnetohydrodynamics second-grade hybrid nanofluid. Considering importance of studying velocity slip temperature jump in boundary conditions flow, which leads results close reality, this intends mentioned topic convergent divergent channels that have significant applications. Design/methodology/approach The examination is conducted on a EG-H_2 O <30%–70%> base fluid contains nanoparticles (i.e. SWCNT-MWCNT). To ensure comprehensive results, study also considers effects thermal radiation, sink/source, rotating convergent-divergent magnetic fields. Initially, governing equations are formulated cylindrical coordinates then simplified ordinary differential through appropriate transformations. These solved using Explicit Runge–Kutta numerical method, compared previous studies for validation. Findings After validation, effect parameters nanofluid has been investigated by means various contours. In following, issue entropy generation its related graphical problem presented. contours graphs accurately display influence parameters, including jump. Besides, when radiation introduced (Rd = +0.1 Rd +0.2), decreases 7% 14%, respectively, without 0). Conversely, increasing sink/source from 0 4 an 8% increase at Q 2 17% both types channels. details analysis fully body paper. Originality/value There many channels, but comprehensively investigates certainly, geometry specifications presented not explored before. Among other distinctive features works, authors can mention presentation form contours, makes physical simpler.

Language: Английский

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Thermosolutal and hydromagnetic performance of radiative hybrid nanofluid in a wavy porous enclosure with a plus-shaped baffle

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 404, P. 124880 - 124880

Published: May 7, 2024

Language: Английский

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Effect of thermal radiation and inclined magnetic field on thermosolutal mixed convection in a partially active wavy trapezoidal enclosure filled with hybrid nanofluid

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 24, P. 100888 - 100888

Published: Oct. 5, 2024

Language: Английский

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Optimizing entropy production in bi-diffusive convection within trapezoidal Porous enclosure using radiative trihybrid nanofluids and T-shaped baffle

European Journal of Mechanics - B/Fluids, Journal Year: 2025, Volume and Issue: unknown, P. 204268 - 204268

Published: April 1, 2025

Language: Английский

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Radiation effects on heat and mass transfer in porous media using Casson nanofluids: Fractional model with nanoparticles in vegetable oil

Journal of Radiation Research and Applied Sciences, Journal Year: 2025, Volume and Issue: 18(2), P. 101505 - 101505

Published: April 24, 2025

Language: Английский

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MHD double-diffusive convection of Casson fluid in a triangular enclosure with thermal radiation and chemical reactions

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2025, Volume and Issue: 8(6)

Published: May 6, 2025

Language: Английский

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Investigating magneto-thermosolutal convection of a radiative hybrid nanofluid within a trapezoidal porous enclosure: effect of various thermal profiles

International Journal of Numerical Methods for Heat &amp Fluid Flow, Journal Year: 2025, Volume and Issue: unknown

Published: May 14, 2025

Purpose The exploration of thermogravitational convection within trapezoidal chambers has accumulated significant interest owing to its wide-ranging applications in both engineering and natural systems. This study aims optimize thermosolutal transmission rates by using advanced radiative hybrid nanofluids. Design/methodology/approach work delves into the effects constant, linear, quadratic sinusoidal (with varying amplitudes periods) thermal species profiles on complex dynamics a porous chamber. cavity is filled with Cu-Al 2 O 3 nanofluid, where lower boundary high temperature concentration, while left right boundaries remain low concentration. top wall insulated thermally solutally. governing Navier Stokes, equations are solved higher order compact procedure. investigation systematically examines influence control parameters, including Hartmann number, Lewis inclination angle, buoyancy ratio, Darcy Rayleigh radiation parameter concentration solid particles nanoliquid. Findings findings reveal that constant heating profile yields most effective dissipation, distribution demonstrates least efficiency. These outcomes, depicted through comprehensive graphical tabular representations, provide novel insights enhancing solutal transport processes such configurations. Originality/value provides insight those systems used manufacturing industry like automobiles, refrigerators, insulators food processing industry.

Language: Английский

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Irreversibility analysis of magneto-thermogravitational convection of radiative hybrid nanofluid in a U-shaped curvilinear porous container with a T-shaped baffle

Journal of Thermal Analysis and Calorimetry, Journal Year: 2024, Volume and Issue: 149(22), P. 13375 - 13396

Published: Oct. 15, 2024

Language: Английский

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