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

[Madhav Nagori]

Hi Prashant,

Thanks for your reply. Yes, I tried that. But the default cases are blowing
up too.

Best,

Madhav

On Sun, Sep 26, 2021 at 2:55 PM Prashant Tarey <tarey.prashant at gmail.com>
wrote:

> [*Caution*: Email from External Sender. Do not click or open links or
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>
> 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
>>
>

-- 
Best Regards,

Madhav Nagori

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
Email: mnagori at uncc.edu
LinkedIn: www.linkedin.com/in/madhav-nagori
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