19th December 2011

OpenFOAM 2.1.0: Physical Modelling

Turbulence Modelling

Version 2.1.0 includes the menu1x (low-Re) model for Reynolds-average simulation of incompressible flows with a boundary layer that undergoes a transition from laminar to turbulent flow. The model is described in D. K. Walters and D. Cokljat, J. Fluids Eng. 130:121401 (2008) and is based on the menu2x model with an additional transport equation included to predict low-frequency velocity fluctuations that trigger transition in the boundary layer. The following example shows flow around and elliptical object, where transition occurs on the wall along the downstream half of the object.


Source code

  • kklOmega class

Combustion Modelling

A new combustion model has been implemented for non-premixed flames, based on the flame-surface density (FSD) concept. This model takes into account the flame strain and it solves a relaxation equation to get the right burning speed per unit of flame area. Combustion models are also now run-time selectable and extensible in the following solvers:

  • fireFoam;
  • reactingFoam;
  • reactingParcelFoam;
  • rhoReactingFoam.

Source code

  • combustionModels library
  • FSD model