Newton Method in OpenFOAM

fsantos · May 28, 2014, 17:02

HI, everyone

Is there any way to use the exact newton method to advance non-linear system of equation in time in OF?

Thanks

Best Regards,

Fabio Santos

harishg · June 1, 2014, 11:45

Are you talking about Navier-Stokes or some other non-linear system? There are many subroutines which include the Newton's method. For example take a look at turbulence wall functions. Some of the routines use Newton's method. If you want to write an implicit Newton solver, you need to code it up. You might need to look into the extend version to look at coupled solvers.

May 28, 2014, 17:02	Newton Method in OpenFOAM	#1
fsantos New Member Fábio Join Date: Sep 2010 Posts: 2 Rep Power: 0	HI, everyone Is there any way to use the exact newton method to advance non-linear system of equation in time in OF? Thanks Best Regards, Fabio Santos

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June 1, 2014, 11:45		#2
harishg Senior Member N/A Join Date: Mar 2009 Posts: 189 Rep Power: 17	Are you talking about Navier-Stokes or some other non-linear system? There are many subroutines which include the Newton's method. For example take a look at turbulence wall functions. Some of the routines use Newton's method. If you want to write an implicit Newton solver, you need to code it up. You might need to look into the extend version to look at coupled solvers.