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January 11, 2013, 08:21 |
ShockTube tutorial modification
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#1 |
New Member
Join Date: Jan 2013
Posts: 2
Rep Power: 0 |
Can anyone give me a bit of an explanation with i needed to input my patch types as symmetryPlanes instead of wall or patch in order to observe shockwave reflections in a shocktube?
my scenario that I modeled: 1 x 0.1 x 0.1 tube LHS to 0.5: p = 10atm, T = 300 0.5 to RHS: p = 1atm T = 300 runtime: 0.020 i think dimensions and initial conditions for p and setFieldsDict were all i changed (other then the symmetryPlane input). thanks, Cris |
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January 15, 2013, 15:03 |
sonicFoam strange results with shockTube slightly modified
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#2 |
New Member
Subramanyam Natarajan
Join Date: Apr 2010
Location: Bangalore, India
Posts: 10
Rep Power: 16 |
Hello,
I modified the shockTube tutorial keeping P_left = 10 atm, P_right = 1 atm, T=300. setFieldDict P is at 50% x: Case 1: x=1 nx =100 y=0.05 ny = 5 z=0.001 nz = 1 max U = 301 m/s Case2: x=1 nx=100 y_left=0.05 y_right=0.08 ny = 5 (diverging pipe) z=0.001 nz=1 max U = 100m/s Case3: x=1 nx=100 y_left=0.05 y_right=0.03 ny=5 (converging pipe) z=0.001 nz=1 max U = 24m/s logically thinking the results are incorrect. Can someone please help with why this could be happening? Update 2-Feb-2013: The above solution was with sonicFoam. I have tried now with rhoCentralFoam too. Exactly same behaviour! This time: shockTube tutorial, the standard in rhoCentralFoam shockTubeDiv : x_left = (-5,-1)(-5,1) x_right=(5,-1.05)(5,1.05) I have uploaded the cases for reference. Someone please help! Last edited by subramanyamn; February 1, 2013 at 05:58. Reason: Adding more info |
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