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Industrial Optimal Design using Adjoint CFD

Welcome to the IODA Project Website

  • Application of the CAD-free morphing framework on an external aerodynamic case with advanced filtering methods
  • Optimised Compressor Stator Exit Angle deviation
  • Optimized Compressor Stator Isentropic Mach number contour
  • Streamlines around the TUM DrivAer vehicle

IODA is an Initial Training Network (ITN) funded by the European Commission from January 2015 to December 2018. IODA follows on from the EC projects FlowHead and About Flow and aims to advance with the systematic integration of adjoint-based design optimisation with CFD into the regular development processes. The developments focus on:

  • The missing link to CAD: part design starts from a CAD geometry and has to deliver the optimised geometry in CAD. However, there is currently no practicable way of either optimising directly on CAD geometries or generating a CAD model from the optimisation results. The currently practised manual capture is inefficient and loses important geometric details.

  • The missing link between topology and shape optimisation: Topology optimisation delivers ragged surfaces as the topology is based on the volume mesh. The currently employed smoothing techniques mitigate this problem insufficiently and often deliver geometries that do not respect the packaging space or manufacturing constraints, making the optimal shape non-feasible.

  • The missing option of considering constrains: Essentially all optimisation tasks in the automotive and turbomachinery industry are actually not primarily driven by pure performance but by constraints (packaging constraints for shape optimisation, trailing-edge radius for thermal life of turbine blades, manufacturability, etc), hence this shortcoming is especially critical. It restricts the usability specifically of shape optimisation methods to just a few selected applications, where constraints do not dominate or can be accounted for post-optimisation – and thereby diminishing the obtained gain in performance.

News

IODA poster presentations at the Industrial Liaison Forum
14-11-2018
IODA Researchers presented their research in poster format at the Queen Mary Industrial Liaison Forum on Wednesday 11th November. Rejish Jesudasan showcased his "CAD-based Automatic and Adaptive Parametrisation Framework for Adjoint-Based Shape Optimisation"
IODA Partners Speak at Von Karman Institute Lecture Series
11-09-2018
Jens-Dominik Mueller was invited to speak at the Von Karman Institute Lecture Series "Introduction to Multidisciplinary Optimisation" on Tuesday 11th September 2018. Jens presented the topics:- 'Efficient sensitivity computation using automatic differentiation' and 'CAD-based parametrisations for adjoint optimisation' IODA industrial ...
IODA Researchers present paper at AIAA in Ohio
15-07-2018
Salvatore Auriemma presented the co-authored paper "Applications of differentiated CAD kernel in gradient-based aerodynamic shape optimization" at the 'American Institute of Aeronautics and Astronautics' Energy and Propulsion Forum in Cincinnati, Ohio on the 11th July 2018 The paper is a result ...

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