Blar i AURA på forfatter "Barletta, Antonio"
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A three-dimensional study of the onset of convection in a horizontal, rectangular porous channel heated from below
Barletta, Antonio; Storesletten, Leiv (Journal article; Peer reviewed, 2012)The onset of convection is studied in a rectangular channel filled with a fluid saturated porous medium, bounded above and below by impermeable isothermal walls at unequal temperatures and laterally by partially conducting ... -
Convective instability in a horizontal porous channel with permeable and conducting side boundaries
Barletta, Antonio; Rossi di Schio, Eugenia; Storesletten, Leiv (Journal article; Peer reviewed, 2013)The stability analysis of the motionless state of a horizontal porous channel with rectangular cross-section and saturated by a fluid is developed. The heating from below is modelled by a uniform flux, while the top wall ... -
Convective Roll Instabilities of Vertical Throughflow with Viscous Dissipation in a Horizontal Porous Layer
Barletta, Antonio; di Schio, Eugenia Rossi; Storesletten, Leiv (Journal article; Peer reviewed, 2010)The vertical throughflow with viscous dissipation in a horizontal porous layer is studied. The horizontal plane boundaries are assumed to be isothermal with unequal temperatures and bottom heating. A basic stationary ... -
Effect of a finite external heat transfer coefficient on the Darcy-Benard instability in a vertical porous cylinder
Barletta, Antonio; Storesletten, Leiv (Journal article; Peer reviewed, 2013)The onset of thermal convection in a vertical porous cylinder is studied by considering the heating from below and the cooling from above as caused by external forced convection processes. These processes are parametrised ... -
Linear instability of mixed convection of cold water in a porous layer induced by viscous dissipation
Storesletten, Leiv; Barletta, Antonio (Journal article; Peer reviewed, 2009)An analysis of linear stability of the stationary laminar Darcy flow in a horizontal porous layer is performed. The porous layer is saturated with cold water. The upper plane boundary is assumed to be subject to heat ... -
On the thermal instability in a horizontal rectangular porous channel heated from below by a constant flux
Barletta, Antonio; Rossi di Schio, Eugenia; Storesletten, Leiv (Journal article; Peer reviewed, 2014)The onset of thermoconvective instability in a rectangular horizontal channel filled with a fluid-saturated porous medium is studied. The channel is heated from below with a constant flux. The top wall is maintained at a ... -
Onset of convection in a porous rectangular channel with external heat transfer to upper and lower fluid environments
Barletta, Antonio; Storesletten, Leiv (Journal article; Peer reviewed, 2012)The conditions for the onset of convection in a horizontal rectangular channel filled with a fluid saturated porous medium are studied. The vertical sidewalls are assumed to be impermeable and adiabatic. The horizontal ... -
Stability of Flow with Viscous Dissipation in a Horizontal Porous Layer with an Open Boundary Having a Prescribed Temperature Gradient
Barletta, Antonio; Storesletten, Leiv (Journal article; Peer reviewed, 2010)A buoyancy-induced stationary flow with viscous dissipation in a horizontal porous layer is investigated. The lower boundary surface is impermeable and subject to a uniform heat flux. The upper open boundary has a prescribed, ... -
Viscous dissipation and thermoconvective instabilities in a horizontal porous channel heated from below
Barletta, Antonio; Storesletten, Leiv (Journal article; Peer reviewed, 2010)A linear stability analysis of the basic uniform flow in a horizontal porous channel with a rectangular cross section is carried out. The thermal boundary conditions at the impermeable channel walls are: uniform incoming ...