Continuous Adjoint - Linear solver diverged -- CFD Online Discussion Forums

August 6, 2021, 17:34

Continuous Adjoint - Linear solver diverged

pedropcb13

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Pedro Paulo

Join Date: Jul 2021

Posts: 8

Rep Power: 4

Hi,

I am running a wavy wall using SU2. The direct simulation converges ok, but when running the continuous adjoint, the linear solver diverges before the first iteration.

When I set the LINEAR_SOLVER = FGMRES, the orthogonalization fails and the linear solver diverges. Changing LINEAR_SOLVER = BCGSTAB the problem was not solved.

I am attaching the .cfg file (txt) and the prints with each linear solver option.

Regards,
Pedro.

Attached Images

	BCGSTAB.jpg (97.2 KB, 3 views)
	FGMRES.jpg (107.4 KB, 3 views)

Attached Files

NS_malik_compressible_adj.txt (7.4 KB, 2 views)

Tags

adjoint, diverges, linear solver

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