Dear Peter, This is a reminder for the email above from previous week.
I'd be very grateful if you or your team could provide some guidance on the use of the "artificial-viscosity" tool in PyFR, in particular on how to tune the parameters of the scheme. Many thanks in advance. Best regards, Antonio On Wednesday, March 1, 2017 at 2:10:14 PM UTC+1, Antonio Garcia-Uceda wrote: > > Dear Peter, > > I'm solving the Euler equations (or Navier-Stokes with mu=0.0 since the > artificial viscosity model only works for the Navier-Stokes solver, as far > as I know). > > Antonio > > On Wednesday, March 1, 2017 at 11:13:04 AM UTC+1, Vincent, Peter E wrote: >> >> Hi Antonio, >> >> What system are you solving? And can you confirm that you have >> shock-capturing >> = artificial-viscosity >> >> Cheers >> >> Peter >> >> Dr Peter Vincent MSci ARCS DIC PhD >> Reader in Aeronautics and EPSRC Fellow >> Department of Aeronautics >> Imperial College London >> South Kensington >> London >> SW7 2AZ >> UK >> >> web: www.imperial.ac.uk/aeronautics/research/vincentlab >> twitter: @Vincent_Lab >> >> >> >> >> >> On 1 Mar 2017, at 09:29, Antonio Garcia-Uceda <[email protected]> >> wrote: >> >> Dear all, >> >> I'm trying to run the test case: Inviscid transonic flow around NACA0012, >> from the previous 3rd High-Order Workshop (you can find a description >> below): >> >> https://www.grc.nasa.gov/hiocfd/wp-content/uploads/sites/22/case_c1.2.pdf >> >> I've run the case on a coarse mesh of 2240 cells, order p3, and the >> parameters for the artificial viscosity method specified in the "User >> Guide" section of your website: >> >> [solver-artificial-viscosity] >> max-artvisc = 0.01 >> s0 = 0.01 >> kappa = 5.0 >> >> >> I obtain indistinguishable results from those without the artificial >> viscosity, so I guess I need to augment the max-artvisc value in order to >> get a higher smoothing of the shock. >> >> Could you please let me know, first, if you have run this test case or >> another similar, and second, which values for the parameters above to use? >> >> Also, for a more general test case, Which procedure do you use to >> estimate the correct value of the parameters above? I guess it's at the end >> a process of trial and error, but Would you know how to do a first quick >> estimation? >> >> Thanks a lot for your help. >> >> Best regards, >> Antonio >> >> -- >> You received this message because you are subscribed to the Google Groups >> "PyFR Mailing List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/pyfrmailinglist. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- You received this message because you are subscribed to the Google Groups "PyFR Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/pyfrmailinglist. For more options, visit https://groups.google.com/d/optout.
