interfaceCompression

santiagomarquezd · June 26, 2010, 02:39

Hi all foamers! I'm studying interFoam in deep and I'm trying to see what is the foundation of interfaceCompression divergence scheme. As is indicated in code description it isn't a TVD/NVD derived scheme although it is writen in consistent way with all other limiters.

1. What are the hypothesis assumed to derive this scheme?
2. Anybody has something written about this?, at least some notes.
3. Why not to use another divergence schemes?

Regards.

nuovodna · July 1, 2010, 07:00

I'm interested in interfaceCompression scheme too

santiagomarquezd · November 26, 2012, 12:45

Hi, it seems that the blending factor is chosen such that upwind is used when the solutions reaches the extrema. The blending is not based on TVD/NDV since the nonlinear term which is being limited is not a normal flux based convection term. Here is a similar approach

http://imajna.oxfordjournals.org/con...1/116.abstract

the interfaceCompression scheme gives a $\lambda$ to use in the TVD HRS framework implemented in FOAM.

http://openfoamwiki.net/index.php/Op...VD_formulation

Regards.

June 26, 2010, 02:39	interfaceCompression	#1
santiagomarquezd Senior Member Santiago Marquez Damian Join Date: Aug 2009 Location: Santa Fe, Santa Fe, Argentina Posts: 452 Rep Power: 23	Hi all foamers! I'm studying interFoam in deep and I'm trying to see what is the foundation of interfaceCompression divergence scheme. As is indicated in code description it isn't a TVD/NVD derived scheme although it is writen in consistent way with all other limiters. 1. What are the hypothesis assumed to derive this scheme? 2. Anybody has something written about this?, at least some notes. 3. Why not to use another divergence schemes? Regards. __________________ Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar

November 26, 2012, 12:45		#3
santiagomarquezd Senior Member Santiago Marquez Damian Join Date: Aug 2009 Location: Santa Fe, Santa Fe, Argentina Posts: 452 Rep Power: 23	Hi, it seems that the blending factor is chosen such that upwind is used when the solutions reaches the extrema. The blending is not based on TVD/NDV since the nonlinear term which is being limited is not a normal flux based convection term. Here is a similar approach http://imajna.oxfordjournals.org/con...1/116.abstract the interfaceCompression scheme gives a $\lambda$ to use in the TVD HRS framework implemented in FOAM. http://openfoamwiki.net/index.php/Op...VD_formulation Regards. Phicau, D.R. and M.W.G. like this. __________________ Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar

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July 1, 2010, 07:00		#2
nuovodna Senior Member Emanuele Join Date: Mar 2009 Posts: 110 Rep Power: 17	I'm interested in interfaceCompression scheme too