Joshua Kelly, On the implementation of the discrete adjoint method for the optimisation of multi-row turbomachines in a generic multiphysics context

Title: On the implementation of the discrete adjoint method for the optimisation of multi-row turbomachines in a generic multiphysics context

Abstract:

Modern engineering design is often characterised by complex, multidisciplinary design problems. Such problems have large design spaces which can be difficult to explore. Computational methods have become commonplace in both industry and academia, yet the challenge of improving a design remains difficult and often success depends on designer experience. To this end, one prospective method is the discrete adjoint method for shape optimisation.

The application of the discrete adjoint has been widely used in many applications, however for turbomachinery applications there are still obstacles to overcome. Several authors have implemented multi-row methods using mixing plane approaches with the adjoint capabilities however the implementations are limited by their complexity, unsuitability for multiphysics frameworks and large errors still present despite the use of automatic differentiation. The implementation of a fully turbulent, discrete adjoint mixing plane implementation was undertaken previously in SU2 but recent developments of a generic framework for multiphysics optimisation problems left the implementation incompatible with modern multizone techniques.

In this talk I will present the status of the work on multi-row turbomachinery discrete adjoints in SU2, along with detailing some of the challenges faced in implementation and the solutions used to overcome them. In particular, a discussion on the implementation of a mixing-plane approach which is compatible with the multiphysics discrete adjoint framework available in SU2 will be presented. This work is the result of collaboration between researchers at the University of Liverpool, UK and RPTU.

How to join online

You can join online via Zoom, using the following link:
https://uni-kl-de.zoom-x.de/j/69269239534?pwd=Z9UOzMpkhMjrxVhll3d49sNHFe9Fd1.1

Referent: Joshua Kelly, University of Liverpool

Zeit: 10:15 Uhr

Ort: Hybrid (Room 32-349 and via Zoom)