Workshop on Coupled Adjoints

October 11 – October 13, 2022, Kaiserslautern, Germany

A Workshop of the National HPC Center South-West (NHR@SW)


The aim of this workshop is to offer the opportunity to present recent research results on adjoint methods for multi-disciplinary optimization problems, to discuss new approaches and to initiate research projects. Fields of application may include, but are not limited to, coupled multiphysics problems from computational fluid dynamics (e.g. fluid-structure interaction or conjugate heat transfer). For such problems, adjoint formulations require an accurate consideration of coupling terms between sets of adjoint equations or numerical adjoint solvers for which many algorithms have been developed in the past. They differ in their architecture which can be of monolithic nature or realized through external libraries, in using continuous or discrete formulations and in being purpose-built for specialized problem settings or designed with a focus on flexibility.

We invite researchers from the adjoint and optimization communities to share their ideas, software contributions and open problems, and we emphasize that not only success stories are welcome but also discussions on both hardware and software limitations as well as other difficulties.


Tuesday, October 11
09:30 – 09:45 Registration
09:45 – 10:15 Welcome and Morning Coffee
10:15 – 12:30 Talks

  • MDO with Coupled Adjoints: Origin, Development, and Applications Anil Yildirim, University of Michigan
  • MPhys: A framework for solving coupled adjoint problems in openMDAO by Josh Anibal, University of Michigan
  • Aero-Structural discrete adjoint sensitivities using FlowSimulator and the Lagrange MDO Suite Alessandro Gastaldi, Technical University Munich
12:30 – 13:30 Lunch Break
13:30 – 15:45 Talks

  • A gradient descent akin method for constrained optimization Long Chen, University of Kaiserslautern
  • Adjoint-based airfoil shape optimization coupled with parabolized stability equations by Daniel Simanowitsch, DLR (German Aerospace Center)
  • Coupled-adjoint in overall aircraft design and the strong program for MDO by Caslav Ilic and Mohammed Abu-Zurayk, DLR (German Aerospace Center)
15:45 – 16:15 Coffee Break
16:15 – 17:00 Discussion Groups
Wednesday, October 12
09:45 – 10:15 Morning Coffee
10:15 – 12:30 Talks

  • A coupled adjoint solver for generic multiphysics problems in SU2 by Ole Burghardt, University of Kaiserslautern
  • Application of the adjoint and the RPM method on an industrial testcase by Corentin Battistoni, MTU Aero Engines AG
  • The roadmap to adjoint aeroelastic optimization of turbomachinery by Jan Backhaus, DLR (German Aerospace Center)
12:30 – 13:30 Lunch Break
13:30 – 14:45 Discussion Groups
15:00 – 22:00 Social Event.
Thursday, October 13
09:45 – 10:15 Morning Coffee
10:15 – 12:30 Discussion Groups
12:30 – 13:30 Lunch Break
13:30 – 14:30 Discussion Groups
14:30 – 15:30 Farewell Coffee


The workshop fee is 250 EUR. For registration please send an informal email to We kindly ask to register as soon as possible.


For general questions concerning the organization as well as regarding contents of the agenda of the workshop, please send an email to or

Travel and Accomodation

The workshop will take place at

Building 42, Room 42-105
Technische Universität Kaiserslautern
67663 Kaiserslautern

For a campus map click here!

You can get there

  • by air via Frankfurt Airport (FRA) which is approximately 120km away from Kaiserslautern and can be reached conveniently by train
  • by train as TGV, ICE/IC and regional trains arrive frequently at Kaiserslautern Hbf and
  • by car (Kaiserslautern is connected by Autobahn A6)

From the railway station Kaiserslautern Hbf the city buses 105, 106, 115, 116 connect to the campus of the TU Kaiserslautern.

Every participant will pay for one’s lodging separately. Lodging is not included in the fee. We recommend the following hotels: