OpenFOAM - Adjoint Optimisation

Learn how to use effectively the adjoint method in aerodynamic and hydrodynamic shape optimization using OpenFOAM
CFD Engineers with interest in CFD-based shape optimisation and the use of sensitivity maps

The course covers both the computation of the so-called sensitivity maps and the full optimisation process, including shape and mesh morphing. The theoretical background is accompanied by hands-on training focusing on the set-up of the OpenFOAM adjoint solver, discussing its capabilities and following the steps required to perform a shape optimisation loop. The first part of the course introduces the continuous adjoint method applied to fluid mechanics with a focus om the key features that make it a valuable tool for industrial problems. The course is organised with collaboration of leading experts in the development of continuous adjoint methods in aerodynamics, with a rich portfolio of applications in internal and external aerodynamics, e.g. cars, aircraft, turbo machinery, from the group of Prof. K.C. Giannakoglou, National Technical University of Athens (NTUA)..

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Day 1 & 2

  • The continuous adjoint in the Official release of OpenFOAM
  • Introduction to the continuous adjoint method. Examples relating to 1D flow of incompressible fluids
  • Interpretation of the adjoint fields
  • Development of the continuous adjoint method in multi-dimensional flows
  • Handling of various objective and constraint functions
  • Adjoint methods for turbulent flows
    • The adjoint to the Reynolds-Averaged Navier-Stokes equations
    • Adjoint to the Spalart-Allmaras turbulence model
  • Continuous adjoint methods and grid sensitivities
  • Use of sensitivity maps
  • Workflow for automated shape optimization loops
  • Hands-on:
    • internal and external flows