A strategy for optimization problems involving complex CFD simulations
In this presentation significant reduction on the processing time was observed for the test case presented. With the new optimization tool there is less need for advanced computational resources that can be used during the optimization phase. Addictive corrections improve accuracy, in an adaptive way. As correction functions are updated, all low fidelity results remain valid (just need to use the new correction value).
However this methodology is highly dependent on the numerical approximations involved in the CFD model.
Special care must be taken with regards to the Turbulence model, interpolation functions and near-wall modeling when working with different mesh sizes