Adding multiple aeordynamic inequality constraints

[usmanshahid90]

Hey,

I would like to add two aerodynamic constraints i.e.

1. I would like my Cl to be greater than equal to (let say) 0.7
2. At the same time, I would like to make my Cm to be equal to a particular value.

How can I perform this on DAFOAM.
Kindly guide me.

[friedenhe]

Check this case for setting multiple constraints. I have deleted a duplicated thread.

[friedenhe]

Change the lower and upper bounds.

[usmanshahid90]

Aren' those bounds only associated with geometric constraints?
I'd like to give inequality constraint of coefficient of lift.

[friedenhe]

Which bounds are you referring to? Can you copy the line where the lift constraint is added to here? Let me know which part is not clear.

[usmanshahid90]

In runscript.py , CL target is defined. In global parameters, It is an equality constraints that the optimized airfoil should have CL= CL_target. I would like to convert it into inequality constraint, i.e. CL_target> 0.7 let say.
I want my optimized airfoil to not restric CL to a particular value, instead, I'd like it to achieve the CL above a threshold to as much as it can.
Regards,

[friedenhe]

You are not looking at the right line, search for "CL_target" in runScript.py. It is used somewhere else.