VISCOUS is one of our in-house codes and has been used since 1985 for a wide range of industrial flow problems.

CFD of Furnace
CFD of Roaster

The code is fully three dimensional and is used in the following:

  • Complex subsonic flow fields - Newtonian or non-Newtonian*, laminar or turbulent.  Turbulent flow fields use the well known k-epsilon turbulence model to account for small scale eddy structures even in relatively coarse grids.
  • Conjugate heat transfer problems.
  • Homogeneous, two-phase flows.
  • Body forces including gravitational, rotational, or electro-magnetic* may be present.
  • Internal heat sources may be present.
  • Mass sources and sinks may be specified.
  • Material properties such as density, viscosity, and conductivity may depend on position, temperature, concentration, and other properties.
  • Chemical species may react.*
  • Boundary conditions may be of the known value or known flux variety.
  • Distributed pressure resistances (screens/porous grids) may be modeled.
  • Heater cores and/or evaporator coils may be modeled, correctly accounting for the dependence of heat transfer on air velocity, fin temperature, fin spacing and fin geometry.
  • Time dependent flow fields may be computed using constant or varying boundary conditions.

*These items require a non-standard version of VISCOUS.