[Vino]

Hi,
I would like to know what is the order of accuracy of the RK used in SU2. It uses three co-efficient, means three stage. If I want to make it even higher stage, say 4 stage, can I just add 4 co-efficient in config file.? or do I need to re-implement the RK in time_integration file?

Also I would like to the implemented is the classical RK method, or Modified RK method (mainly for higher stability margin)? If possible, can I get the reference of the RK method implemented in SU2.

Thank you.

[fpalacios]

Originally Posted by Vino

Hi,
I would like to know what is the order of accuracy of the RK used in SU2. It uses three co-efficient, means three stage. If I want to make it even higher stage, say 4 stage, can I just add 4 co-efficient in config file.? or do I need to re-implement the RK in time_integration file?

Also I would like to the implemented is the classical RK method, or Modified RK method (mainly for higher stability margin)? If possible, can I get the reference of the RK method implemented in SU2.

Thank you.

Hi.

The implementation is generic, you just need to change the coefficients to add more integration stages. The method is the one that you can find in most of Profesor Jameson's papers. Like http://aero-comlab.stanford.edu/Pape....1981-1259.pdf

Best Regards,

Francisco Palacios
SU2 lead developer