Viscous fluxes in a Riemann HLLC solver
 

I am trying to added viscosity to an existing code which uses HLLC flux solver for inviscid fluxes. Does anyone have any suggestions or references on how to do this. I am hoping to add the viscous fluxes within the HLLC solver, if possible, as it seems to be simpler than adding them to the source terms.

Thanks, Bryce

Re: Viscous fluxes in a Riemann HLLC solver
 

Do not added to the Riemann solver directly, it is better to create a separate "viscous-riemann" solver. If you neglect gradients no-normal to the cell faces the resultant expressions are very simple, (I did it that way).So then you have a inviscid flux (hllc) and a viscous flux. If you want to add a turbulent model later on, it may be good to add them to the source term.

Re: Viscous fluxes in a Riemann HLLC solver
 

Salvador,

Do you have a reference for the methodolgy you used.

Thanks a lot, Nashat

Re: Viscous fluxes in a Riemann HLLC solver
 

Batten et al, Computers & Fluids 25(2):421-436,1996 Batten et al, Journal Of Computational Physics 137:38-78,1997 Bassically those two, I got my papers under the refeeres but basically is the same procedure

Re: Viscous fluxes in a Riemann HLLC solver
 

Thanks for the references. Would be interested in reading your publication also, once its out.

HI Nashat,

I am kind of looking into similar problem. Were you able to figure out how to add the viscous term in here?
Thanks
Reply me at babuu.nishu@gmail.com

Thanks
Nishant