Hi Zhicheng, You are correct, the ability to define a different temperature for each boundary is not implemented yet. However it is a relatively straightforward feature to add, you can follow the implementation for the pressure outlet where you can specify a pressure (or a file) for each boundary. I also think this is a feature we should have and I am happy to help you with it if you get stuck. Cheers, Giacomo On Thu, Aug 13, 2020 at 9:31 AM Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:

Hi Zhicheng,

I was not aware of this issue but I can see how this situation may have arisen. I am cc’ing Giacomo/Ganlin to see if they has a quick suggestion. What I would expect we need to do is to introduce the ability to read t_wall through the user-defined tag on the boundary condition and then use this value to see the internal value. I do not think there should be much more that is require than that.

Cheers, Spencer.

Spencer Sherwin FREng, FRAeS Head of Aerodynamics Section, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, South Kensington Campus, Imperial College London, SW7 2AZ, UK Phone: +44 (0)20 7594 5052 http://www.imperial.ac.uk/people/s.sherwin/

On 13 Aug 2020, at 02:14, Wang, Zhicheng <zhicheng_wang@brown.edu> wrote:

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Dear Nektar++ users,

I'm using the CompressibleFlowSolver to simulate nitrogen flow in a square cavity, where there are two isothermal walls with different temperatures, and the rest of the walls are adiabatic. After looking into the manual for quite a while, my understanding is that the wall temperature is uniquely defined by parameter "Twall", there is no straightforward way to set up a different wall temperature in the parameter file. Has anyone run into the same issue before ? Can you give a hint how to implement this?

Best regards Zhicheng Wang _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users