The issues connected with material of the previous chapters are considered.
We define the temperature and derive the heat equation. Next we discuss the free
convection and obtain the system of equations describing this phenomenon. We study
the applicability of the perfect and viscous fluid models, introduce the non-dimensional
form of equations of the fluid model, and consider the dynamic similarity of the flows.
Keywords: Dynamic similarity, Fourier law of heat conduction, Free convection,
Froude number, Heat equation, Non-dimensional equations, Reynolds number,
Temperature, Thermal conductivity, Thermal diffusivity.
