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<div>Hello Ryan,</div>
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<div>Thanks for your reply!<br>
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<div>I have used the wind tunnel approach before but, unfortunately, it don't believe it will give us exactly what we want in this case.
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<div>Best,</div>
<div>Sylvain</div>
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<div id="divRpF795184" style="direction: ltr;"><font size="2" face="Tahoma" color="#000000"><b>From:</b> Ryan Farber [rjfarber@umich.edu]<br>
<b>Sent:</b> Thursday, August 29, 2019 7:29 PM<br>
<b>To:</b> Sylvain Turcotte<br>
<b>Cc:</b> flash-users@flash.uchicago.edu<br>
<b>Subject:</b> Re: [FLASH-USERS] Moving solid object in flash4<br>
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<div dir="ltr">Hi Sylvain,
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<div>I've never tried to do this but would it be perhaps easier to do a wind tunnel setup (move to the frame of your falling object) with the solid object represented as boundary zones? I believe the latter is controlled by "BDRY_VAR" index of the pointer to
the solution data.</div>
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<div>Best,<br clear="all">
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<div>Ryan</div>
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<div dir="ltr" class="gmail_attr">On Thu, Aug 29, 2019 at 2:17 PM Sylvain Turcotte <<a href="mailto:sturcott@ubishops.ca" target="_blank" rel="noopener noreferrer">sturcott@ubishops.ca</a>> wrote:<br>
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<div>Hi all,</div>
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<div>I am trying to model a solid object moving in an initially motionless gas in a cartesian grid with a constant gravitational acceleration.</div>
<div>I am not quite sure how to model this solid object. <br>
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<div>From what I understand I could try with the multitype EOS but I am not quite sure what to use as an appropriate EOS for my object, or I could try with active particles as mentioned in the user's guide?
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<div>Any of you have tried something like this with FLASH?</div>
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<div>Best,</div>
<div>Sylvain<br>
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