Examining Solution Consistency
One can evaluate convergence by checking for consistency in the flow field. The conservation relations require a balance of fluxes through a control surface. For a closed duct, the flow through the duct should be conserved. Low-speed flow over a closed body should have zero drag. Other such consistency relations can be defined for specific flow fields. These provide verification of the code since the consistency relations are usually a statement of some analytic result.
Last Updated: Wednesday, 10-Feb-2021 09:38:59 EST