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gdtk-uq / gdtk

The Gas Dynamics Toolkit (GDTk) is a set of software tools for simulating high speed fluid flow, maintained at The University of Queensland and the University of Southern Queensland, Australia.
https://gdtk.uqcloud.net/
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Adjoint solver for design optimisation #66

Closed abhx7 closed 2 months ago

abhx7 commented 2 months ago

How do I use install the executable for for adjoint solver to calculate shape sensitivities? It has been commented out in the Makefile.

uqngibbo commented 2 months ago

Hi abhx7,

I'm afraid the adjoint solver from Eilmer 4 has been depreciated: It was built as an experiment and even though it worked, it was too restrictive for general use.

A new shape optimisation code is currently being tested for Eilmer v5 that will be available in the near future, but at present it is not quite ready.

Nick,

uqngibbo commented 2 months ago

I should mention that, if you don't have too many design variables, it is still perfectly possible to compute sensitivites using finite differences if you have to!

abhx7 commented 2 months ago

Alright, thank you. I was planning to use finite difference if i couldn't use the adjoint solver.

rjgollan-on-github commented 2 months ago

For a small number of design variables, this is likely a tractable approach.

On Fri, 28 June 2024, 7:00 pm abhx7, @.***> wrote:

Alright, thank you. I was planning to use finite difference if i couldn't use the adjoint solver.

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