[FLASH-USERS] Regarding particles.

[Dean Townsley]

Hi Saurabh,

I agree with John ZuHone's comment that yt provides a good solution for 
many uses, but I just wanted to say that in contrast to the grid data 
structures, the data structures in the bare particle files are not too 
complicated.  I think with a little learning about basic hdf5 structure, 
you may be able to write a modest python script using something like 
h5py to pull out what you need, assuming your files are not too large.

Good luck!

Dean


On 11/10/18 1:01 PM, Saurabh Sawant wrote:
> Hi,
>            My name is Saurabh Sawant. I am a graduate student at UIUC.
> I am using FLASH to simulate a shock tube with no-slip walls and to do 
> so I have modified the sod case. Now I am trying to put micron sized 
> dust particles. I have 2 questions regarding the same:
>
> 1) Do active particles see the wall. By this I mean if the particles 
> cross the wall, is there an already implemented facility to reflect 
> them back. If so, can I do this with different coefficients of 
> sticking and momentum accommodation?
>
> 2) Is there a way to convert *_part_* hdf5 files generated for 
> particle traces to Tecplot format or simple ASCII dat format?
> I do convert flow field files to Tecplot using script provided with an 
> old version of FLASH. These files open in Visit too. However, *_part_* 
> hdf5 files don't open in Visit as well. Should I first convert the 
> files to Visit format and them find a way to convert to Tecplot? I 
> think tools for converting it to Visit compatible format are provided.
>
> Your help is much appreciated.
> -Saurabh.