FSI with remeshing

omidiut · September 12, 2011, 02:11

Hi all
I am trying to simulate Vortex induced vibration of a body with 2 way FSI in ANSYS workbench. can i use remeshing with FSI simulation? how can i do? is it (remeshing) necessary?
when i have to use remeshing in FSI?

Thanks, best regards.

singer1812 · September 12, 2011, 11:01

Remeshing within 2-way FSI is not supported.

brunoc · September 12, 2011, 13:40

Remeshing in moving mesh simulations might be needed if you have strong displacements in your domain. On some cases elements become so distorted that they get inverted. The solver will then exit with a 'negative element' type of error.

Remeshing in 2-way FSI is generally not supported because the solver needs to re-interpolate FEA and CFD meshes, but I believe ANSYS has come up with a beta feature (ie, try on your own risk) for R13 that will allow you to do that. Talk to your ANSYS representative and ask for an example.

Cheers.

javad.emamgholizadeh · September 12, 2011, 17:01

Hi omid.i am simulationing the vortex induced vibrations in the pipe too,can you help me to how can i do it?
plz send your answer in my email(javad.emamgholizadeh@gmail.com).
thanks
best wish

September 12, 2011, 02:11	FSI with remeshing	#1
omidiut Senior Member omid Join Date: Apr 2011 Posts: 105 Rep Power: 14	Hi all I am trying to simulate Vortex induced vibration of a body with 2 way FSI in ANSYS workbench. can i use remeshing with FSI simulation? how can i do? is it (remeshing) necessary? when i have to use remeshing in FSI? Thanks, best regards. javad.emamgholizadeh likes this.

September 12, 2011, 17:01	vortex induced vibrations	#4
javad.emamgholizadeh New Member javad Join Date: Aug 2011 Posts: 2 Rep Power: 0	Hi omid.i am simulationing the vortex induced vibrations in the pipe too,can you help me to how can i do it? plz send your answer in my email(javad.emamgholizadeh@gmail.com). thanks best wish

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September 12, 2011, 11:01		#2
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 20	Remeshing within 2-way FSI is not supported.

September 12, 2011, 13:40		#3
brunoc Senior Member Bruno Join Date: Mar 2009 Location: Brazil Posts: 277 Rep Power: 21	Remeshing in moving mesh simulations might be needed if you have strong displacements in your domain. On some cases elements become so distorted that they get inverted. The solver will then exit with a 'negative element' type of error. Remeshing in 2-way FSI is generally not supported because the solver needs to re-interpolate FEA and CFD meshes, but I believe ANSYS has come up with a beta feature (ie, try on your own risk) for R13 that will allow you to do that. Talk to your ANSYS representative and ask for an example. Cheers.