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October 24, 2014, 11:45 |
Lift maximization Drag constrained problem.
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#1 |
Member
Antoni Alexander
Join Date: Nov 2009
Posts: 43
Rep Power: 16 |
Hi,
I am using version 3.2.3 both SU2 codes and Testcases. Recently I want to do a Lift maximization Drag constrained optimization of a single foil. That means to increase the lift as high as possible, meantime keep the drag under a certain level. So I practiced on the case of TestCases-master/optimization_euler/steady_naca0012 , in which the configuration file was modified as below: Code:
OBJECTIVE_FUNCTION= LIFT Code:
OPT_OBJECTIVE= LIFT * 0.01 % % Optimization constraint functions with scaling factors, separated by semicolons % ex= (Objective = Value ) * Scale, use '>','<','=' OPT_CONSTRAINT= ( DRAG < 0.3 ) * 0.01; ( MOMENT_Z > 0.0 ) * 0.01; ( MAX_THICKNESS > 0.12 ) * 0.01 Code:
------------------------------ Begin Solver ----------------------------- The solution contains 333 non-physical points. Min Delta Time: 0.123883. Max Delta Time: 1.44516. Maximum residual: -0.372488, located at point 1284. Iter Time(s) Res[Rho] Res[RhoE] CLift(Total) CDrag(Total) 0 0.095575 -1.586022 -0.966313 -0.233561 14.293142 The solution contains 564 non-physical points. 1 0.095075 -0.287745 0.470576 -12.467302 35.049694 The solution contains 597 non-physical points. 2 0.094813 1.181535 1.911802 -15.029912 25.895173 ... Any suggestion about this? |
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