Dear Sir or Madam,
I am writing to inquire about the frequently NaN check error in the
"inc_cylinder_2d".
As a newbie of PyFR, I used to try to change the Reynold number of the
example by editing the "Uin".
The default Reynolds number was 125 and the NaN check errors occurred
only when the Reynolds number up to 140(Re=140, Uin=1.12 is fine without
error).
The error is like this:
"RuntimeError: NaNs detected at t = 0.4399999999999995";
When decreasing the nsteps of "nancheck" to 1, the error became this:
"RuntimeError: NaNs detected at t = 0.1584".
The previous mailing list encourage me about the section
"shock-capturing" which may not suitable for the situation (Re=141~150).
I was wondering if PyFR's cylinder example is suitable for Re>140 cases
in normal working condition or maybe need some improvement on my
configuration file?
Regards,
Lin
inc_cylinder_2d_Re.ini (1.9 KB)
residual.csv (2.04 KB)