Fluent Adjoint Solver for compressible flow

b.shuvayan · January 17, 2015, 00:16

Hey everyone! I have been trying to solve a simple min. drag optimization problem for flow past a triangular wedge at Mach 4 condition. It appears that adjoint solver cannot handle pressure-far-field boundary condition so I changed it to pressure inlet/outlet conditions. The fluent solver itself converges but the problem lies with Adjoint solver.

It shows multiple warning saying it cannot handle
1. density based flows
2. pressure inlet based b.c. etc

Is there a way to run compressible flow calculations in adjoint solver of Fluent??
Please suggest.

syavash · January 17, 2015, 14:54

In current version of Ansys Fluent, only incompressible solver is supported in Adjoint solver.
Bests

revilo82 · January 30, 2015, 07:27

Hi,

with R15 the Adjoint Solver supports the energy equation. You can simulate cases with low compressibility (Ma<0.7). This works good!

January 17, 2015, 00:16	Fluent Adjoint Solver for compressible flow	#1
b.shuvayan Member Shuvayan Brahmachary Join Date: Oct 2012 Posts: 36 Rep Power: 14	Hey everyone! I have been trying to solve a simple min. drag optimization problem for flow past a triangular wedge at Mach 4 condition. It appears that adjoint solver cannot handle pressure-far-field boundary condition so I changed it to pressure inlet/outlet conditions. The fluent solver itself converges but the problem lies with Adjoint solver. It shows multiple warning saying it cannot handle 1. density based flows 2. pressure inlet based b.c. etc Is there a way to run compressible flow calculations in adjoint solver of Fluent?? Please suggest.

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January 17, 2015, 14:54		#2
syavash Senior Member Ehsan Asgari Join Date: Apr 2010 Posts: 473 Rep Power: 19	In current version of Ansys Fluent, only incompressible solver is supported in Adjoint solver. Bests

January 30, 2015, 07:27		#3
revilo82 New Member Join Date: May 2013 Posts: 7 Rep Power: 13	Hi, with R15 the Adjoint Solver supports the energy equation. You can simulate cases with low compressibility (Ma<0.7). This works good!