Search Results - "Hirata, Silvia"

Onset of Viscous Dissipation Instability in Plane Couette Flow with Temperature-Dependent Viscosity by Sene, Alioune, Ben Sadek, Sara, Hirata, Silvia C., Ouarzazi, Mohamed Najib

“…The conditions for the onset of dissipation thermal instability with temperature-dependent viscosity in the plane Couette flow of a Newtonian fluid are…”
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The effect of viscous heating on the linear and nonlinear stability analysis of a flow through a porous duct by Celli, Michele, Barletta, Antonio, Brandão, Pedro Vayssiére, da Costa Hirata, Silvia, Ouarzazi, Mohamed Najib

“…The stability of a stationary fully developed vertical flow across a porous pipe is investigated. The heating due to viscous dissipation is assumed to be…”
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Onset of Thermal Instabilities in the Plane Poiseuille Flow of Weakly Elastic Fluids: Viscous Dissipation Effects by Hirata, Silvia C., Ouarzazi, Mohamed Najib

“…The onset of thermal instabilities in the plane Poiseuille flow of weakly elastic fluids is examined through a linear stability analysis by taking into account…”
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Three-dimensional absolute and convective instabilities in mixed convection of a viscoelastic fluid through a porous medium by Hirata, Sílvia C., Ouarzazi, Mohamed Najib

“…By using the mathematical formalism of absolute and convective instabilities we study the nature of unstable three-dimensional disturbances of viscoelastic…”
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Two- and Three-Dimensional Absolute Instabilities in a Porous Medium with Inclined Temperature Gradient and Vertical Throughflow by Schuabb, Mateus, Alves, Leonardo S. de B., da C. Hirata, Silvia

“…A linear stability analysis for the onset of mixed convection in a saturated porous medium through an absolute instability of both two- and three-dimensional…”
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Linear onset of convective instability for Rayleigh-Bénard-Couette flows of viscoelastic fluids by Alves, Leonardo S. de B., Hirata, Silvia C., Ouarzazi, Mohamed N.

“…•Without shear, stationary longitudinal rolls appear in the weakly elastic regime.•Without shear, oscillatory transverse rolls appear in the strongly elastic…”
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Onset of Primary and Secondary Instabilities of Viscoelastic Fluids Saturating a Porous Layer Heated from below by a Constant Flux by Gueye, Abdoulaye, Ouarzazi, Mohamed, Hirata, Silvia, Hamed, Haikel

“…We analyze the thermal convection thresholds and linear characteristics of the primary and secondary instabilities for viscoelastic fluids saturating a porous…”
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Stability of Thermosolutal Natural Convection in Superposed Fluid and Porous Layers by Hirata, S. C., Goyeau, B., Gobin, D.

“…This article deals with the onset of thermosolutal natural convection in horizontal superposed fluid and porous layers. A linear stability analysis is…”
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Onset of convective instabilities in under-ice melt ponds by Hirata, Sílvia C, Goyeau, Benoît, Gobin, Dominique

“…The onset of double-diffusive natural convection in under-ice melt ponds is investigated through a linear stability analysis. The three-layer configuration is…”
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Finite amplitude convection and heat transfer in inclined porous layer using a thermal non-equilibrium model by Ouarzazi, M.N., Hirata, S.C., Barletta, A., Celli, Michele

“…•Nonlinear stability analysis of convection in inclined porous layer.•Study of nonlinear effects of local thermal non-equilibrium between solid and…”
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Effects of viscous dissipation on the convective instability of viscoelastic mixed convection flows in porous media by Alves, L.S. de B., Barletta, A., Hirata, S., Ouarzazi, M.N.

“…The thermal instability induced by small-amplitude perturbations superposed to the basic horizontal through flow in a plane porous layer (Prats problem) is…”
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Nonlinear pattern selection and heat transfer in thermal convection of a viscoelastic fluid saturating a porous medium by Hirata, S.C., Ella Eny, G., Ouarzazi, M.N.

“…The linear and nonlinear dynamics of convection in porous media heated from below and saturated by a viscoelastic fluid are examined. Two geometrical…”
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Convective heat transfer in the Burgers-Rayleigh-B\'enard system by Calzavarini, Enrico, Hirata, Silvia C

“…Phys. Rev. Fluids 8,063502(2023) The dynamics of heat transfer in a model system of Rayleigh-B\'enard (RB) convection reduced to its essential, here dubbed…”
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Stabilization of the Rayleigh-B\'enard system by injection of thermal inertial particles and bubbles by Raza, Saad, Hirata, Silvia C, Calzavarini, Enrico

“…The effects of a dispersed particulate phase on the onset of Rayleigh-B\'enard convection in a fluid layer is studied theoretically by means of a two-fluid…”
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Stability of natural convection in superposed fluid and porous layers: Equivalence of the one- and two-domain approaches by Hirata, S.C., Goyeau, B., Gobin, D., Chandesris, M., Jamet, D.

“…Stability analyses of thermal and/or solutal natural convection in a configuration composed by a fluid layer overlying a homogeneous porous medium have been…”
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Primary and secondary instabilities of viscoelastic mixtures saturating a porous medium: Application to separation of species by Delenda, N., Hirata, S.C., Ouarzazi, M.N.

“…► Convection of viscoelastic mixtures in a porous cavity is investigated. ► Soret effect and the lateral aspect ratio influence are taken into account. ►…”
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Modeling and hybrid simulation of slow discharge process of adsorbed methane tanks by Hirata, S.C., Couto, P., Lara, L.G., Cotta, R.M.

“…The slow discharge process of a methane tank filled with porous carbonaceous adsorptive material is modelled and solved by the Integral Transform Method,…”
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Stability analysis of natural convection in adjacent fluid and porous layers: influence of the interfacial modeling by Hirata, Silvia da Costa, Goyeau, Benoit, Gobin, Dominique Null, Carr, Magda, Cotta, Renato M.

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Stability of Natural Convection in Superposed Fluid and Porous Layers Using Integral Transforms by Hirata, S. C., Goyeau, B., Gobin, D., Cotta, R. M.

“…A stability analysis of thermal natural convection in superposed fluid and porous layers is carried out. The two-layer system is described using a one-domain…”
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Basal melting driven by turbulent thermal convection by Esfahani, Babak Rabbanipour, Hirata, Silvia C, Berti, Stefano, Calzavarini, Enrico

“…Phys. Rev. Fluids 3, 053501 (2018) Melting and, conversely, solidification processes in the presence of convection are key to many geophysical problems. An…”
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