Numerical simulation of double-diffusive convection in hybrid nanofluid flow in a porous medium within a swastika-shaped cavity DOI
Shafqat Hussain, J. Prakash, Bander Almutairi

et al.

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

Published: April 26, 2025

Purpose This study aims to examine double-diffusive natural convection (DDNC) in a swastika-shaped porous cavity filled with hybrid nanofluid (Fe 3 O 4 -GO/water). It analyze heat and mass transfer under varying thermophysical properties key parameters like Rayleigh (Ra), Darcy (Da), Lewis (Le), Schmidt (Sc) numbers buoyancy ratio (N). The research seeks evaluate the nanofluid’s performance compared mono nanofluids, providing insights for applications cooling systems, exchangers chemical processing. addresses gap understanding behavior complex geometries combined thermal solutal effects. Design/methodology/approach coupled partial differential equations mass, momentum, energy species concentration are solved using stable, higher-order finite element method (FEM). Temperature- concentration-dependent of incorporated. FEM code is validated against experimental data numerical benchmarks. important systematically varied assess their impact on transfer. Performance metrics such as average Nusselt number ( Nu avg ), Sherwood Sh ) kinetic KE analyzed compare nanofluids different media conditions. Findings Increasing (N) from 0–4 enhances Nuavg (8.30%–8.36%), Shavg (14.61%–15.01%) KEavg, highlighting buoyancy’s strong influence. Higher Ra transitions system conduction- convection-dominated regimes, rising by 50.89% 65.20% at = 106 Da increases (10–5–10–2). outperforms increasing 0.28%–1.46% 0.08%–0.40% nanoparticle volume fraction (?) rises (0.01–0.05). These results demonstrate superior transport capabilities media. Originality/value presents novel into DDNC uniquely shaped cavity, addressing existing literature. temperature- modeling accuracy. approach ensures reliability geometries. reveal significant improvements due nanoparticles, offering practical benefits industrial advanced quantitative analysis provides benchmark future studies, emphasizing potential outperform conventional fluids systems.

Language: Английский

Influence of nonlinear thermal radiation and exponential space dependent heat source on hybrid nanofluid stagnation point flow over a shrinking riga surface DOI
Mohammed Zulfeqar Ahmed,

V. Dhanalaxmi,

Thirupathi Thumma

et al.

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2025, Volume and Issue: 8(3)

Published: Feb. 12, 2025

Language: Английский

Citations

1
MHD flow and heat transfer of Carreau nanofluid with slip effects, and modified Fourier- Fick’s law heat - mass fluxes over a paraboloid surface in porous medium DOI Creative Commons
Tadesse Lamesse, Wubshet Ibrahim

Results in Physics, Journal Year: 2025, Volume and Issue: unknown, P. 108201 - 108201

Published: March 1, 2025

Language: Английский

Citations

0
Numerical simulation of double-diffusive convection in hybrid nanofluid flow in a porous medium within a swastika-shaped cavity DOI
Shafqat Hussain, J. Prakash, Bander Almutairi

et al.

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

Published: April 26, 2025

Purpose This study aims to examine double-diffusive natural convection (DDNC) in a swastika-shaped porous cavity filled with hybrid nanofluid (Fe 3 O 4 -GO/water). It analyze heat and mass transfer under varying thermophysical properties key parameters like Rayleigh (Ra), Darcy (Da), Lewis (Le), Schmidt (Sc) numbers buoyancy ratio (N). The research seeks evaluate the nanofluid’s performance compared mono nanofluids, providing insights for applications cooling systems, exchangers chemical processing. addresses gap understanding behavior complex geometries combined thermal solutal effects. Design/methodology/approach coupled partial differential equations mass, momentum, energy species concentration are solved using stable, higher-order finite element method (FEM). Temperature- concentration-dependent of incorporated. FEM code is validated against experimental data numerical benchmarks. important systematically varied assess their impact on transfer. Performance metrics such as average Nusselt number ( Nu avg ), Sherwood Sh ) kinetic KE analyzed compare nanofluids different media conditions. Findings Increasing (N) from 0–4 enhances Nuavg (8.30%–8.36%), Shavg (14.61%–15.01%) KEavg, highlighting buoyancy’s strong influence. Higher Ra transitions system conduction- convection-dominated regimes, rising by 50.89% 65.20% at = 106 Da increases (10–5–10–2). outperforms increasing 0.28%–1.46% 0.08%–0.40% nanoparticle volume fraction (?) rises (0.01–0.05). These results demonstrate superior transport capabilities media. Originality/value presents novel into DDNC uniquely shaped cavity, addressing existing literature. temperature- modeling accuracy. approach ensures reliability geometries. reveal significant improvements due nanoparticles, offering practical benefits industrial advanced quantitative analysis provides benchmark future studies, emphasizing potential outperform conventional fluids systems.

Language: Английский

Citations

0