Soret effect on the onset of viscous dissipation thermal instability for Poiseuille flows in binary mixtures

Autor: K. Ali Amar, S. C. Hirata, M. N. Ouarzazi

Publikováno v: Physics of Fluids
Physics of Fluids, 2022, 34 (11), pp.114101. ⟨10.1063/5.0115663⟩

We investigate numerically the Soret effect on the linear instability properties in convection due to viscous dissipation in a horizontal channel filled with a binary fluid mixture. Two sets of boundary conditions of experimental interest are conside

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c47af7e1c86b21cd0309c07de4ac3016
https://hal.science/hal-03945835

Weakly nonlinear analysis of viscous dissipation thermal instability in plane Poiseuille and plane Couette flows

Autor: S. C. Hirata, M. N. Ouarzazi, Antonio Barletta, Y. Requilé

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, 2020, 886, pp.A26. ⟨10.1017/jfm.2019.1062⟩

The weakly nonlinear stability analysis of plane Poiseuille flow (PPF) and plane Couette flow (PCF) when viscous dissipation is taken into account is considered. The impermeable lower boundary is considered adiabatic, while the impermeable upper boun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63b95ee804746b2d01ba1cf5c5b2232
https://hal.science/hal-03681393

Identifying linear absolute instabilities from differential eigenvalue problems using sensitivity analysis

Autor: Mateus Schuabb, Antonio Barletta, S. C. Hirata, L. S. de B. Alves

Identifying the convective/absolute instability nature of a local base flow requires an analysis of its linear impulse response. One must find the appropriate singularity in the eigenvalue problem with complex frequencies and wavenumbers and prove ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91e5602e2fc115453b089c014dbd9e5c
http://hdl.handle.net/11585/708614

Basal melting driven by turbulent thermal convection

Autor: Enrico Calzavarini, Babak Rabbanipour Esfahani, Stefano Berti, S. C. Hirata

Publikováno v: Physical Review Fluids
Physical Review Fluids, 2018, 3 (5), ⟨10.1103/PhysRevFluids.3.053501⟩
Physical Review Fluids, American Physical Society, 2018, 3 (5), ⟨10.1103/PhysRevFluids.3.053501⟩

Melting and, conversely, solidification processes in the presence of convection are key to many geophysical problems. An essential question related to these phenomena concerns the estimation of the (time-evolving) melting rate, which is tightly conne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b437902157561f43f2eda7459fb52a65

Finite amplitude convection and heat transfer in inclined porous layer using a thermal non-equilibrium model

Autor: S. C. Hirata, Michele Celli, M. N. Ouarzazi, Antonio Barletta

Publikováno v: International Journal of Heat and Mass Transfer
International Journal of Heat and Mass Transfer, Elsevier, 2017, 113, pp.399-410. ⟨10.1016/j.ijheatmasstransfer.2017.05.084⟩

Finite amplitude convection in a inclined porous layer heated from below is studied by using local thermal non-equilibrium (LTNE) as mathematical model which takes into account the heat transferred between the solid phase and the fluid phase. Consequ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c43b87036c2fffb067c3b9c43b45559
https://hal.archives-ouvertes.fr/hal-01541297