The paper presents an approach to numerical simulation of airframe noise on unstructured meshes and demonstrates its workability on the slat noise case. The numerical approach implements a possibility to treat smaller movable components of the considered configuration using the Brinkman penalization method, a variant of immersed boundary techniques, complete with the mesh deformation algorithms. The computations are carried out using the higher-accuracy lower-cost EBR scheme on unstructured meshes. The developed method is aimed to reduce the computational costs needed for a series of predictions in course of optimization.
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