[FLASH-BUGS] cylindrical coordinates, avisco

[Tomasz Plewa]

On Sun, Sep 28, 2003 at 11:25:20AM -0400, Sean Matt wrote:
> Thanks again, Tomek.  It now seems to work just fine.  I understand that
> the rotational symmetry axis is special, and that one possibly wants the
> artificial viscosity to scale with cylindrical r. But I still don't
> understand why the artificial viscosity should depend on my choice of
> domain normalization.  For example, why should the artificial viscosity be
> different if I choose xmin=0.0 ,xmax=1.0 as opposed to xmin=0.0,
> xmax=100.0?

Do you have the same resolution in both cases, Sean? If not, the
difference is most probably due to change in accuracy of finite
difference operators (e.g., velocity divergence).

Tomek
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