<div dir="ltr">Saurabh,<div>Particles know about the boundary condition, though that is usually the same as that of the Grid. However, if you want a custom boundary handling look for file gr_ptOneFaceBC.F90, make a copy of it in your simulation directory, and then modify it so that particles reflect from the wall. Your custom version will override the default one.</div><div>Best,</div><div>Anshu</div>
</div><br><div class="gmail_quote"><div dir="ltr">On Sat, Nov 10, 2018 at 1:02 PM Saurabh Sawant <<a href="mailto:saurabhisreachable@gmail.com">saurabhisreachable@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div> My name is Saurabh Sawant. I am a graduate student at UIUC.<br></div><div>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:</div><div><br></div><div>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?</div><div><br></div><div>2) Is there a way to convert *_part_* hdf5 files generated for particle traces to Tecplot format or simple ASCII dat format?<br></div><div>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.</div><div><br></div><div>Your help is much appreciated.<br></div><div>-Saurabh.<br></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>********************************************************<br>Anshu Dubey<br></div><div>630 252 3313 (work)<br></div><div>312 420 0033 (mobile)<br>Argonne National Laboratory<br>********************************************************</div></div></div>