setting of level set method as initial condition

sooroo3 · April 7, 2011, 12:18

I use the Ansys 13, and have several quastion as below.
First, when using coupled Level set with the VOF model, how i set the initial condition? is it ok for level set function to set zero in intialization?
second, is it possible to sovle the VOF+Level set with Solidification/melting model together?
Please give me advice.
Thanks

dutliang · December 13, 2011, 07:40

I have the question too, and it makes me very puzzled.

If you have the answer, please tell me soon.
Thank you very much!

peterliu · December 13, 2011, 19:19

me too, and every time i got the following error

Primitive error at node 0: fill cell VOF distance: invalid number of nodes on the face.

do you have the same problem?

ndabir · January 7, 2015, 20:15

Did you solve the problem? Did you figure out how to set initial conditions of coupled level set and VOF method in Ansys?

Sufyan · July 31, 2018, 05:20

Can you please help me.. I have same question .. How to initialize the level-set field ..i have defined the volume fraction correctly for my problem.

1- if I only use vof model. (explicit- geo-reconstruction) residual converges and simulation runs and I am getting results.

2- I have to run simulation with CLSVOF in FLUENT. when i select this option and keeping all other parameters same, my residual for ls-function does not change. I assume I have not initialized Level-set field as I did in my in-house code.

Please describe the method to initialize the level set field in fluent.

thanks

April 7, 2011, 12:18	setting of level set method as initial condition	#1
sooroo3 New Member YG Kim Join Date: Nov 2010 Posts: 15 Rep Power: 16	I use the Ansys 13, and have several quastion as below. First, when using coupled Level set with the VOF model, how i set the initial condition? is it ok for level set function to set zero in intialization? second, is it possible to sovle the VOF+Level set with Solidification/melting model together? Please give me advice. Thanks

July 31, 2018, 05:20		#5
Sufyan New Member Muhammad Sufyan Join Date: Jun 2012 Location: South Korea Posts: 17 Rep Power: 14	Can you please help me.. I have same question .. How to initialize the level-set field ..i have defined the volume fraction correctly for my problem. 1- if I only use vof model. (explicit- geo-reconstruction) residual converges and simulation runs and I am getting results. 2- I have to run simulation with CLSVOF in FLUENT. when i select this option and keeping all other parameters same, my residual for ls-function does not change. I assume I have not initialized Level-set field as I did in my in-house code. Please describe the method to initialize the level set field in fluent. thanks __________________ SUFI

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December 13, 2011, 07:40		#2
dutliang New Member gtliang Join Date: Dec 2011 Posts: 4 Rep Power: 14	I have the question too, and it makes me very puzzled. If you have the answer, please tell me soon. Thank you very much!

December 13, 2011, 19:19		#3
peterliu New Member qingming.liu Join Date: May 2011 Posts: 4 Blog Entries: 1 Rep Power: 15	me too, and every time i got the following error Primitive error at node 0: fill cell VOF distance: invalid number of nodes on the face. do you have the same problem?

January 7, 2015, 20:15		#4
ndabir Senior Member navid Join Date: Jan 2010 Posts: 110 Rep Power: 16	Did you solve the problem? Did you figure out how to set initial conditions of coupled level set and VOF method in Ansys?