Under relaxation factors are applied to stabilise calculations by limiting the rate of change of both fields and equations.
\[ Q^n = Q^o + \alpha \left( Q - Q^o \right) \]
The linear solvers require that the coefficient matrix is at least diagonally equal, and preferably diagonally dominant, i.e. per row, the magnitude of the diagonal must be greater than or equal to the sum of the off-diagonal components.
Specified in the fvSolution file under the relaxationFactors
sub-dictionary
relaxationFactors { fields { } equations { } }
Values relate to
Would you like to suggest an improvement to this page? | Create an issue |
Copyright © 2016 OpenCFD Ltd.