Steady compressible Navier-Stokes-Fourier system in two space dimensions

Petra Pecharová; Milan Pokorný

Displaying similar documents to “Steady compressible Navier-Stokes-Fourier system in two space dimensions”

Weak solutions for steady compressible Navier-Stokes-Fourier system in two space dimensions

Antonín Novotný, Milan Pokorný (2011)

Applications of Mathematics

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We consider steady compressible Navier-Stokes-Fourier system in a bounded two-dimensional domain. We show the existence of a weak solution for arbitrarily large data for the pressure law $p (ϱ, ϑ) \sim ϱ^{γ} + ϱ ϑ$ if $γ > 1$ and $p (ϱ, ϑ) \sim ϱ {ln}^{α} (1 + ϱ) + ϱ ϑ$ if $γ = 1$ , $α > 0$ , depending on the model for the heat flux.

On pressure boundary conditions for steady flows of incompressible fluids with pressure and shear rate dependent viscosities

Martin Lanzendörfer, Jan Stebel (2011)

Applications of Mathematics

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We consider a class of incompressible fluids whose viscosities depend on the pressure and the shear rate. Suitable boundary conditions on the traction at the inflow/outflow part of boundary are given. As an advantage of this, the mean value of the pressure over the domain is no more a free parameter which would have to be prescribed otherwise. We prove the existence and uniqueness of weak solutions (the latter for small data) and discuss particular applications of the results. ...

A remark on the smoothness of bounded regions filled with a steady compressible and isentropic fluid

Sébastien Novo, Antonín Novotný (2005)

Applications of Mathematics

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For convenient adiabatic constants, existence of weak solutions to the steady compressible Navier-Stokes equations in isentropic regime in smooth bounded domains is well known. Here we present a way how to prove the same result when the bounded domains considered are Lipschitz.

On existence and regularity of solutions to a class of generalized stationary Stokes problem

Nguyen Duc Huy, Jana Stará (2006)

Commentationes Mathematicae Universitatis Carolinae

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We investigate the existence of weak solutions and their smoothness properties for a generalized Stokes problem. The generalization is twofold: the Laplace operator is replaced by a general second order linear elliptic operator in divergence form and the “pressure” gradient $\nabla p$ is replaced by a linear operator of first order.