symmetry

hamid1 · June 27, 2011, 08:17

in simulating fluid in a pipe, in case of physical and geometrical symmetry and no turbulant, is there any issue for considering symmetry? is the result as accurate as in case we dont consider the symmetry and solve all the domain, ? what if there would be turbulance?

trulytrue · June 27, 2011, 11:11

Dear Hamid, You should do simple case.
One simulation for simple full pipe with high turbulence , and the other simulation with symetry conditions in the middle (U are simulating the half domain).And comapre the results

Let me know .

Best

Trulytrue

hamid1 · June 27, 2011, 11:28

thank u for reply, as far as i know for turbulence simulating, symmetry may cause wrong answer, is it also the case for laminar regime?
regards
Hamid

trulytrue · June 27, 2011, 13:09

Do it in laminar as well, but for laminar it s ok
test by ur self, it s very easy and simple

June 27, 2011, 08:17	symmetry	#1
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	in simulating fluid in a pipe, in case of physical and geometrical symmetry and no turbulant, is there any issue for considering symmetry? is the result as accurate as in case we dont consider the symmetry and solve all the domain, ? what if there would be turbulance?

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June 27, 2011, 11:11		#2
trulytrue New Member trulytrue Join Date: Jun 2011 Posts: 7 Rep Power: 14	Dear Hamid, You should do simple case. One simulation for simple full pipe with high turbulence , and the other simulation with symetry conditions in the middle (U are simulating the half domain).And comapre the results Let me know . Best Trulytrue

June 27, 2011, 11:28		#3
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	thank u for reply, as far as i know for turbulence simulating, symmetry may cause wrong answer, is it also the case for laminar regime? regards Hamid

June 27, 2011, 13:09		#4
trulytrue New Member trulytrue Join Date: Jun 2011 Posts: 7 Rep Power: 14	Do it in laminar as well, but for laminar it s ok test by ur self, it s very easy and simple