Mathematics – Analysis of PDEs
Scientific paper
2006-11-12
Mathematics
Analysis of PDEs
submitted to EJDE
Scientific paper
Within the framework of continuum mechanics, the full description Of joint motion of elastic bodies and compressible viscous fluids with taking into account thermal effects is given by the system consisting of the mass, momentum, and energy balance equations, the first and the second laws of thermodynamics, and an additional set of thermo-mechanical state laws. The present paper is devoted to the investigation of this system. Assuming that variations of the physical characteristics of the thermo-mechanical system of the fluid and the solid are small about some rest state, we derive the linearized non-stationary dynamical model, prove its well-posedness, establish additional refined global integral bounds for solutions, and further deduce the linearized incompressible models and models incorporating absolutely rigid skeleton, as asymptotic limits.
Meirmanov Anvarbek M.
Sazhenkov Sergei A.
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