Hi Junichi, Thanks for trying out PyFR.
I set the initial velocity distribution using hyperbolic tangent function, and could run the case. Great! Current issues are shock wave generation from bottom of inlet as shown in the attached figure and termination of simulation job with an error message "RuntimeError: Minimum sized time step rejected". I'm trying to solve the issue. May require some tuning of the artificial viscosity parameters - which can be a bit fiddly. 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<http://www.imperial.ac.uk/aeronautics/research/vincentlab> twitter: @Vincent_Lab<https://twitter.com/Vincent_Lab> On 16 May 2017, at 15:55, Junichi Fukui <[email protected]<mailto:[email protected]>> wrote: Hi Freddie, Thank you for your advice. I set the initial velocity distribution using hyperbolic tangent function, and could run the case. Current issues are shock wave generation from bottom of inlet as shown in the attached figure and termination of simulation job with an error message "RuntimeError: Minimum sized time step rejected". I'm trying to solve the issue. Thanks and regards, Junichi 2017年5月15日月曜日 23時07分32秒 UTC+9 Freddie Witherden: Hi Junichi, On 15/05/2017 06:57, Junichi Fukui wrote: > Dear all, > > I'm trying to solve supersonic cavity flow case at Mach 2.0 using PyFR > 1.6.0. The attached files are mesh files and case setup file for the > simulation. I would like to set zero velocity inside cavity region (Y <= > 0), and uniform velocity (2.366431913, 0) with smooth velocity > transition from non-slip wall in upper cavity region (Y > 0). > > How can we set the velocity distribution in [soln-ics] section of ini file? The initial conditions can be a function of the spatial coordinates. In order to create a smooth step you can use a hyperbolic tangent. Regards, Freddie. -- 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]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/pyfrmailinglist. For more options, visit https://groups.google.com/d/optout. <pressure_t22.png><cavity_2d.ini> -- 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.
