On solutions for a generalized Navier–Stokes–Fourier system fulfilling the entropy equality

@article{Abbatiello2022OnSF,
  title={On solutions for a generalized Navier–Stokes–Fourier system fulfilling the entropy equality},
  author={Anna Abbatiello and Miroslav Bul{\'i}{\vc}ek and Petr Kaplick'y},
  journal={Philosophical transactions. Series A, Mathematical, physical, and engineering sciences},
  year={2022},
  volume={380}
}
We consider a flow of a non-Newtonian heat conducting incompressible fluid in a bounded domain subjected to the homogeneous Dirichlet boundary condition for the velocity field and the Dirichlet boundary condition for the temperature. In three dimensions, for a power-law index greater or equal to 11/5, we show the existence of a solution fulfilling the entropy equality. The entropy equality can be formally deduced from the energy equality by renormalization. However, such a procedure can be… 

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References

SHOWING 1-9 OF 9 REFERENCES

Large Data Existence Result for Unsteady Flows of Inhomogeneous Shear-Thickening Heat-Conducting Incompressible Fluids

We consider unsteady flows of inhomogeneous, incompressible, shear-thickening and heat-conducting fluids where the viscosity depends on the density, the temperature and the shear rate, and the heat

Unconditional finite amplitude stability of a fluid in a mechanically isolated vessel with spatially non-uniform wall temperature

A fluid occupying a mechanically isolated vessel with walls kept at spatially non-uniform temperature is in the long run expected to reach the spatially inhomogeneous steady state. Irrespective of

Mathematical Analysis of Unsteady Flows of Fluids with Pressure, Shear-Rate, and Temperature Dependent Material Moduli that Slip at Solid Boundaries

This work rigorously investigates the mathematical properties of unsteady three-dimensional internal flows of such incompressible fluids with pressure dependent viscosities and establishes the long-time existence of a (suitable) weak solution when the data are large.

Ordinary differential equations, transport theory and Sobolev spaces

SummaryWe obtain some new existence, uniqueness and stability results for ordinary differential equations with coefficients in Sobolev spaces. These results are deduced from corresponding results on

On the Classification of Incompressible Fluids and a Mathematical Analysis of the Equations That Govern Their Motion

A new classification of incompressible fluids characterized by a continuous monotone relation between the velocity gradient and the Cauchy stress is provided.

Weak and Measure-valued Solutions to Evolutionary PDEs

Weak Solutions for a Class of Non-Newtonian Fluids with Energy Transfer

Abstract. In the present paper, we shall consider a nonlinear thermoconvection problem consisting of a coupled system of nonlinear partial differential equations due to temperature dependent