Unsteady optimization using a discrete adjoint approach applied to aeroacoustic shape design
M Rumpfkeil, D Zingg - 46th AIAA Aerospace Sciences Meeting and …, 2008 - arc.aiaa.org
46th AIAA Aerospace Sciences Meeting and Exhibit, 2008•arc.aiaa.org
In this paper, shape optimization is used to minimize aerodynamic noise in an unsteady
trailing-edge flow. First, a generic time-dependent optimal design problem is introduced and
the derivation of the discrete adjoint equations in a general approach is outlined. The
presented framework is then applied to a time-dependent laminar flow past an acoustically
compact airfoil. The results show a significant reduction of up to 94 percent in the total
radiated acoustic power with reasonable computational cost using fifteen shape design …
trailing-edge flow. First, a generic time-dependent optimal design problem is introduced and
the derivation of the discrete adjoint equations in a general approach is outlined. The
presented framework is then applied to a time-dependent laminar flow past an acoustically
compact airfoil. The results show a significant reduction of up to 94 percent in the total
radiated acoustic power with reasonable computational cost using fifteen shape design …
In this paper, shape optimization is used to minimize aerodynamic noise in an unsteady trailing-edge flow. First, a generic time-dependent optimal design problem is introduced and the derivation of the discrete adjoint equations in a general approach is outlined. The presented framework is then applied to a time-dependent laminar flow past an acoustically compact airfoil. The results show a significant reduction of up to 94 percent in the total radiated acoustic power with reasonable computational cost using fifteen shape design variables.
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