Stack Cfd Package Test

The converged simulation results derived from the stack CFD package must he carefully checked. Under transient conditions, the simulation results at one time-step grid will be used as the initial conditions for the simulation at the next time-step grid, consequently, the computational errors at each time-step grid are accumulated. However, there are no general rules to check the correctness of such simulation results. One simple check procedure which seems effective has been used by the authors. This entails conducting an additional steady state simulation under the final state of the transient condition, then comparing the results between the transient simulation for a large time-step grid and this steady state simulation. If the transient simulation results for a large time-step grid are in agreement with the steady state simulation, the preliminary performance of the stack CFD package is considered to be acceptable.

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