[FLASH-USERS] Value of dt_hydro is going to negative infinity

[Prashant Tarey]

Hi Madhav,
Setup the case with -3d flag; in the object directory, replace the
flash.par file with the flash.par.3d file available in FlatPlate directory
and run the case. A default 3D airfoil case will run.

On Sun, Sep 26, 2021 at 2:12 PM Madhav Nagori <mnagori at uncc.edu> wrote:

> Hello Everyone,
>
> I am using the Flash 3D setup for my project. Before implementing the 3D
> setup to my specific problem, I am trying to run the default cases in
> FLASH. Once that is done, I will change the files to tailor it to my
> requirements.
>
> One of the 3D default cases in FLASH is of the cylinder. There is a
> simulation block in which a cylinder is placed and the flow over the
> cylinder is visualized. Since this is a default case, I didn't change any
> files which I downloaded from FLASH website and ran as it is.
>
> The simulation starts properly. But after a few time steps, the value of
> dt_hydro is going to a large negative value. As a result, the simulation
> blows up. Has anyone faced a similar problem? Any suggestions would be
> greatly appreciated.
>
> Thank you for the time.
>
> Best,
>
> Madhav
> --
> Best Regards,
>
> Madhav Nagori (he/him)
>
> PhD Candidate | Laboratory for Multiscale Computational Fluid Dynamics
> Department of Mechanical Engineering and Engineering Sciences
> University of North Carolina at Charlotte
> Office: Duke 273, 9330 Robert D. Snyder Rd, Charlotte, NC 28262, USA
> <https://www.google.com/maps/search/273,+9330+Robert+D.+Snyder+Rd,+Charlotte,+NC+28262,+USA?entry=gmail&source=g>
> Email: mnagori at uncc.edu
> LinkedIn: www.linkedin.com/in/madhav-nagori
>
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