Divergence X-Momentum

oozcan · November 15, 2016, 05:58

Hi all,

I am working on convective and conduction heat transfers in 3D multi-body part mould elements. (7 body). Divergence x-momentum has been occured whenever I run calculation.

Skewness is about 0.92,

Max aspect ratio :15.811

Min orthogonal quality: 0.14850

One of cell zone conditions is fixed temperature and laminar zone.

Steady state-pressure based solver, Realizable k-e turbulence-,standard wall functions- SIMPLE and Coupled (PV Coupling),First order upwind schemes (Spatial Discretization), URF are default (sometimes I have tried all URF as 0.1), Solution initizaliton has been tried as hybrid,standard and FMG. ,somethimes decreased one equation which one is divergence.

Advanced solutions control,all cycle type has been changed to W-cycle and all terminations are 0.1, all stabilization method have been done as BCGSTAB,

It seems like a loop.

Anyone who help me will be appreciated!

oozcan · November 18, 2016, 05:45

how can we resolve this problem instead of being helped me ?

November 15, 2016, 05:58	Divergence X-Momentum	#1
oozcan Senior Member Onur Özcan Join Date: Feb 2016 Location: Istanbul/Turkey Posts: 461 Rep Power: 12	Hi all, I am working on convective and conduction heat transfers in 3D multi-body part mould elements. (7 body). Divergence x-momentum has been occured whenever I run calculation. Skewness is about 0.92, Max aspect ratio :15.811 Min orthogonal quality: 0.14850 One of cell zone conditions is fixed temperature and laminar zone. Steady state-pressure based solver, Realizable k-e turbulence-,standard wall functions- SIMPLE and Coupled (PV Coupling),First order upwind schemes (Spatial Discretization), URF are default (sometimes I have tried all URF as 0.1), Solution initizaliton has been tried as hybrid,standard and FMG. ,somethimes decreased one equation which one is divergence. Advanced solutions control,all cycle type has been changed to W-cycle and all terminations are 0.1, all stabilization method have been done as BCGSTAB, It seems like a loop. Anyone who help me will be appreciated! Last edited by oozcan; November 18, 2016 at 05:41.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
PEMFC model with FLUENT	brahimchoice	FLUENT	22	April 19, 2020 15:44
[ANSYS Meshing] Help with element size	sandri_92	ANSYS Meshing & Geometry	14	November 14, 2018 07:54
fluent divergence for no reason	sufjanst	FLUENT	2	March 23, 2016 16:08
Divergence problem	Smaras	FLUENT	13	February 21, 2013 05:03
Derivation of Momentum Equation in Integral Form	Demonwolf	Main CFD Forum	2	October 29, 2009 19:53

November 18, 2016, 05:45		#2
oozcan Senior Member Onur Özcan Join Date: Feb 2016 Location: Istanbul/Turkey Posts: 461 Rep Power: 12	how can we resolve this problem instead of being helped me ?