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<p>Hi All,</p>
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<p>I'm trying to work out how to specify the Froude number in my simulation of a buoyant plume. I can specify Reynolds and Peclet in the .rea file but there doesn't seem to be anywhere analogous for Fr. I thought it might be in the .usr function in the subroutine
userf, mine currently looks like this:</p>
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<div> subroutine userf (ix,iy,iz,iel)<br>
include 'SIZE'<br>
include 'TSTEP'<br>
c include 'TOTAL'<br>
include 'NEKUSE'<br>
<br>
integer e,f,eg<br>
<br>
ffx = -0.06976*temp<br>
ffy = 0.9976*temp<br>
ffz = 0.0<br>
<br>
return<br>
end<br>
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<p>Does anyone have any idea (if this is the correct place, and) how I can specify Fr here. I also want to ensure gravity is in the correct direction (namely, towards the floor), and how does what I have at the moment do this? My simulation outputs do have
gravity in the correct direction, so it must be correct.</p>
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<p>Thank you in advance.</p>
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<p>Best,</p>
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<p>Daniel<br>
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