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October 24, 2015, 04:36 |
Numerical error in two phase flow simulation
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#1 |
New Member
Shobit Garg
Join Date: Oct 2015
Posts: 2
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I am trying to simulate regimes occurring after a drop falls on a liquid pool using in-house code. However there seem to errors in the solution -
1.) We are using levels set approach to get the interface. However we are getting mass loss in the drop (we are reinitializing the level set.) 2.) The drop, when it reaches near the pool, suddenly shoots upwards. This is against gravity. Please help me to find why we are getting these errors. Time step - 10E-7 Grid - 450*1000 |
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October 24, 2015, 05:29 |
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#2 | |
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Michael Prinkey
Join Date: Mar 2009
Location: Pittsburgh PA
Posts: 363
Rep Power: 25 |
Quote:
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October 24, 2015, 05:48 |
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#3 |
New Member
Shobit Garg
Join Date: Oct 2015
Posts: 2
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Ohk..sorry for that. So we are trying to implement coupled level set volume of fluid method on an axisymmetric case. Our grid is Cartesian and I guess no grid stretching. Two fluids are water and oil so density ratio (oil/water) of about 0.86.
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Tags |
level set function, level set method, numerical error, volume of fluid in a cell |
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