[mlooti]

Hi every one

I have a question regarding optimization

How can I perform an heat transfer optimization within SU2? like I have an aerodynamic body which has high temperature on its nose because of its high velocity and I want to optimize the shape of the nose in order to reduce the temperature on the nose.

how can I do that? there are two options in the config file for the objective function which seems to have sth with temperature (TOTAL_HEATFLUX, MAXIMUM_HEATFLUX). what are their diffrences ? How can I calculate mu flow simulation heat flux with su2?

thanks alot

[hlk]

Originally Posted by mlooti

Hi every one

I have a question regarding optimization

How can I perform an heat transfer optimization within SU2? like I have an aerodynamic body which has high temperature on its nose because of its high velocity and I want to optimize the shape of the nose in order to reduce the temperature on the nose.

how can I do that? there are two options in the config file for the objective function which seems to have sth with temperature (TOTAL_HEATFLUX, MAXIMUM_HEATFLUX). what are their diffrences ? How can I calculate mu flow simulation heat flux with su2?

thanks alot

Total heatflux refers to a surface integral of the heat flux over the surface, while maximum heatflux takes the 8-norm of the surface heatflux (an approximation to 'max' which is used for various reasons - if you prefer you can change the power by manually changing the code, but note that if using the adjoint you will also need to change it there). By your description, I suspect that you would want the maximum heat flux. Note that accuracy, both in general with heat flux and particularly when using the continuous adjoint, will be highly dependent on mesh quality.

[mlooti]

thanks alot for your answer Heather Kline

but hoe can I compute the heat flux within SU2, so I can see the effect of opyimization?

thanks alot

[hlk]

Originally Posted by mlooti

thanks alot for your answer Heather Kline

but hoe can I compute the heat flux within SU2, so I can see the effect of opyimization?

thanks alot

If you have specified a surface with the isothermal boundary condition, and viscous flow, this will be output to the history file. (Otherwise heat flux either won't be meaningful because it's an inviscid flow, or is a value specified by the boundary condition)

I also encourage you to try out the tutorials (if you have not already), which include examples of shape optimization:
https://github.com/su2code/SU2/wiki/User-Tutorials