Linearized problem

SZhao · January 26, 2015, 05:24

Hi all,

In SU2, there is a option:
% Mathematical problem (DIRECT, ADJOINT, LINEARIZED, ONE_SHOT_ADJOINT)
MATH_PROBLEM= LINEARIZED

In the released TestCases, I found not such demo on how to launch a LINEARIZED CFD case. Anyone has experience running LINEARIZED case? I would really appreciate if someone could send me a such demo.

And I'm wondering what kind of problem it solves. Does it linearize the Euler/NS equation at steady state? If so, how could I extract the standard linear system x_dot = Ax + Bu?

Thanks a lot!

Simon

awendorff · May 12, 2015, 16:43

We have a linearized Euler solver in solver_linearized_mean.cpp, but it is not used very often.

January 26, 2015, 05:24	Linearized problem	#1
SZhao New Member Simon Zhao Join Date: Jan 2015 Posts: 1 Rep Power: 0	Hi all, In SU2, there is a option: % Mathematical problem (DIRECT, ADJOINT, LINEARIZED, ONE_SHOT_ADJOINT) MATH_PROBLEM= LINEARIZED In the released TestCases, I found not such demo on how to launch a LINEARIZED CFD case. Anyone has experience running LINEARIZED case? I would really appreciate if someone could send me a such demo. And I'm wondering what kind of problem it solves. Does it linearize the Euler/NS equation at steady state? If so, how could I extract the standard linear system x_dot = Ax + Bu? Thanks a lot! Simon

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May 12, 2015, 16:43		#2
awendorff New Member Andrw Wendorff Join Date: Apr 2014 Posts: 28 Rep Power: 12	We have a linearized Euler solver in solver_linearized_mean.cpp, but it is not used very often.