[FLASH-USERS] Sedov running time problem

[Adam Reyes]

Hi Binh,

You probably want to play with the runtime parameters "sim_rInit" and
"sim_expEnergy"  in your flash.par. These control the energy of the
explosion and the initial radius in which it is deposited for the initial
conditions. You'll want to scale these to your much larger domain.

The FLASH setup of the problem including the many runtime parameters as
well as the dimensionless analytic solution are described here
<https://flash.rochester.edu/site/flashcode/user_support/flash4_ug_4p7/node187.html#SECTION010114000000000000000>
in
the user guide.

*************************************************************************
Adam Reyes

Code Group Leader, Flash Center for Computational Science
Research Scientist, Dept. of Physics and Astronomy
University of Rochester
River Campus: Bausch and Lomb Hall, 369
500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
Email adam.reyes at rochester.edu
Web https://flash.rochester.edu
 (he / him / his)

*************************************************************************

On Wed, Jul 19, 2023 at 7:44 AM Yên Bình <yenbinhpy308 at gmail.com> wrote:

> Dear FLASH Users,
>
> I have a problem with setting up the code for Sedov. I try to set up the
> simulation box to 10^16 x 10^16:
>
> *sim_xctr = 5.0e15*
> *sim_yctr = 5.0e15*
>
>
>
> *xmin = 0.xmax = 1.0e16ymin = 0.ymax = 1.0e16*
>
> But when I try to run the simulation, the plot file does not have any sign
> of an explosion (just a blank). I think it's because the box is too big so
> I need to set the right value of the running time:
>
>
>
>
>
>
>
>
>
>
>
>
> *# checkpoint file output parameterscheckpointFileIntervalTime =
> 0.01checkpointFileIntervalStep = 0checkpointFileNumber = 0# plotfile output
> parametersplotfileIntervalTime = 1plotfileIntervalStep = 0plotfileNumber =
> 0nend            = 10000tmax            = 1.0e8*
>
> But even if I set the time very high (10^8), nothing happens.
>
> I really appreciate any help to solve this problem. Thank you in advance.
>
> Binh.
>
>
> [image: image.png]
>
>
> Nguyen Thi Yen Binh
>
> College Student
>
> Space Science and Satellite Technology
>
> University of Science and Technology of Ha Noi
>
> binhnty.bi12-060 at st.usth.edu.vn
>
> +84367533986
>
> Tuy Hoa, Phu Yen, Viet Nam
>
> <https://www.facebook.com/wbinhw>
>
> <https://www.instagram.com/yenbinne/>
>
> <https://github.com/pea9>
>
>
>
>
>
>
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