QUADRATURE, order
Defines order of the Gauss quadrature. Possible values are two or three. Note that in the u-p mixed formulation the reduced integration is always used, i.e., volumetric terms and terms containing the extra interpolated pressure are integrated always by order of two.
Order | Maximal order* | Integration points |
---|---|---|
2 | 3 | 6 |
3 | 5 | 14 |
*Maximal order of exactly integrated polynomial