Page 104 - ansys
P. 104

6.3   k-ε Model


         6.3.1  Setting Up the Standard or Realizable k-ɛ Model

         If you choose the standard k- model or the realizable k- model, the following options are available:

         w   Viscous  heating  (always  activated  for  the  density-based  solvers)  (Section  inclusion
             of buoyancy effects

         6.3.2  Setting Up the RNG k-ɛModel

         If you choose the RNG k-ɛmodel, the following options are available:
         w   Differential viscosity model
         w   Swirl modification
         w   Viscous  heating  (always  activated  for  the  density-based  solvers)  (Section  inclusion  of
             buoyancy effects on
         For all k- models, one the following near-wall treatments must be selected non-equilibrium wall
         functions
         w   Enhanced wall treatment
         w   User-defined wall functions
         If you choose the enhanced wall treatment, the following options are available:
         w   Pressure gradient effects
         w   Thermal effects





                                                                                               97
   99   100   101   102   103   104   105   106   107   108   109