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నైరూప్య

Aerodynamic Shape Optimization Studies of the ADODG Benchmark Problems

Shitrit S

The following study presents single and multipoint aerodynamic shape optimizations of two benchmark problems
defined by the Aerodynamic Design Discussion Group (ADODG). Mesh warping and geometry parameterization is
accomplished by fitting the multi-block structured grid to a B-spline volumes and performing the mesh movements
by using surface control points embedded with free-form deformation (FFD) volumes. The aerodynamic model
solves the RANS equations with Spallart-Almaras turbulence model. A gradient based optimization algorithm is
used with an adjoint method in order to compute the objectives and constraints derivatives with respect to the
design variables. The objective in this work is to minimize the drag of airfoil and wings for transonic regimes taking
into account volume and thickness constraint, including aerodynamic coefficients constraint.