The Energy Balance Relation for Weak solutions of the Density-Dependent Navier-Stokes Equations

preprint2016arXivOpen access

Abstract

We consider the incompressible inhomogeneous Navier-Stokes equations with constant viscosity coefficient and density which is bounded and bounded away from zero. We show that the energy balance relation for this system holds for weak solutions if the velocity, density, and pressure belong to a range Besov spaces of smoothness 1/31/3. A density-dependent version of the classical Kármán-Howarth-Monin relation is derived.

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