Error Message: "Problem diverges: Momentum transport equation, variable: X-velocity"

hansai · October 24, 2012, 10:20

Does anybody know about this error message: "Problem diverges: Momentum transport equation, variable: X-velocity" (taken from the Case.fla-file)?
i was calculating a simulation of an FAME-Engine+ mesh but the computer aborts the iteration.
however the residuals RESU, RESV, RESW, RESM, etc. are all below 1.

aminfaghihi · November 1, 2012, 06:15

Which turbulence model do you use?

Ayoshi · November 10, 2012, 15:15

if u are sure that all the residual values are less than 1, reduce the time step and try again ...

hansai · February 22, 2013, 05:02

solved the problem, it was quite easy: during the meshing process, a meshing interval was defined by multiple surfaces.
but its not easy, to conclude just from the error message to the cause of the problem...

October 24, 2012, 10:20	Error Message: "Problem diverges: Momentum transport equation, variable: X-velocity"	#1
hansai New Member Join Date: Oct 2012 Posts: 11 Rep Power: 2	Does anybody know about this error message: "Problem diverges: Momentum transport equation, variable: X-velocity" (taken from the Case.fla-file)? i was calculating a simulation of an FAME-Engine+ mesh but the computer aborts the iteration. however the residuals RESU, RESV, RESW, RESM, etc. are all below 1.

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November 1, 2012, 06:15		#2
aminfaghihi New Member amin faghihi Join Date: Oct 2012 Posts: 4 Rep Power: 2	Which turbulence model do you use?

November 10, 2012, 15:15		#3
Ayoshi New Member Join Date: Jun 2012 Posts: 6 Rep Power: 2	if u are sure that all the residual values are less than 1, reduce the time step and try again ...

February 22, 2013, 05:02		#4
hansai New Member Join Date: Oct 2012 Posts: 11 Rep Power: 2	solved the problem, it was quite easy: during the meshing process, a meshing interval was defined by multiple surfaces. but its not easy, to conclude just from the error message to the cause of the problem...