  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.
