Existence for turbulent flows through permeable media with unbounded turbulent-depending coefficients
arxiv(2024)
摘要
A mathematical model that governs turbulent flows through permeable media is
considered in this work. The model under consideration is based on a
double-averaging concept which in turn is described by the time-averaging
technique characteristic of the turbulence k-epsilon model and by the
volume-averaging methodology that is used to model unstable flows through
porous media. The functions of turbulence viscosity, turbulence diffusion and
turbulence production are assumed to be unbounded with respect to the turbulent
kinetic energy. For the associated initial-and boundary-value problem, we prove
the existence of suitable weak solutions.
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