Thomas Dick, SciComp

Title:

Development of a Discrete Adjoint method for unsteady PDE optimization

Abstract:

In the design and optimization of aerospace systems, there are many problems which are unsteady by nature. For example active flow control, aeroacoustic or turbo machinery. For these problems the assumption, that the underlying physical problem is steady, is not valid. In this talk we will show how one can adapt an adjoint framework for unsteady problems. Therefore we will generalize the first discretize then optimize approach for this case. This will allow us to construct a Lagrangian and to derive the KKT condition, which will ultimately give us a discrete adjoint equation.