Compressible fluid model

The compressible fluid solver needs specific definitions of the gas model, its dynamics, boundary conditions and initial conditions.

Fluid

Available modes for the dynamical effects of the fluid are

• inviscid model with DYNAMICS=INVISCID|EULER.
• laminar model with DYNAMICS=LAMINAR|DNS.

Gas model

Typhon can currently handle only one species. The only gas model is an ideal gas (perfect gas with constant heat capacities). The gas model is defined in BLOCK:MODEL.

Viscosity definition is available through

• Sutherland law (VISCOSITY=SUTHERLAND) and then
  SUTH_DYNVISC,
  SUTH_TREF
SUTH_TSUTH constants
• constant dynamic viscosity (VISCOSITY=CONSTANT|DYNAMIC-CONSTANT) and then
  DYN_VISC constant
• constant kinematic viscosity (VISCOSITY=KINEMATIC-CONSTANT) and then
  KIN_VISC constant

Whatever the definition of viscosity, the conductivity coefficient is defined through a constant Prandtl number.

Boundary Conditions

• wall (isothermal, adiabatic, coupled) and moving wall
• symmetry
• subsonic or supersonic inlet
• subsonic or supersonic outlet

Initial Conditions