time dependant velocity inlet for multiphase flow

vince60270 · May 16, 2014, 05:22

hello ping,
i setted a time step of 0.01 with 9 inner iterations over 10s after several tests and the results are impressive they are quasi similar with the ones i got when i was running simulations Speed after Speed. thank you very much for all your help. :-)

uuu · August 8, 2014, 09:57

The problem seems to be solved BUT for upcoming readers:

Maybe lowering the corresponding under-relaxation-factors could lead to a solution too?!
at least it SEEMS to work for my problem which is, i think, kind of similar..

this would be much easier..

Peresvet · February 22, 2023, 15:34

Quote:

Originally Posted by ping

the normal velocity field will be zero since the water is now not moving ie it is actually more like a real hull moving in stationary water

so as I said in an earlier post you need to instead use the field called relative velocity

(DFBI) overset also works.

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May 16, 2014, 05:22		#21
vince60270 New Member vincent Join Date: May 2014 Posts: 24 Rep Power: 11	hello ping, i setted a time step of 0.01 with 9 inner iterations over 10s after several tests and the results are impressive they are quasi similar with the ones i got when i was running simulations Speed after Speed. thank you very much for all your help. :-)

August 8, 2014, 09:57		#22
uuu New Member Join Date: Apr 2012 Posts: 1 Rep Power: 0	The problem seems to be solved BUT for upcoming readers: Maybe lowering the corresponding under-relaxation-factors could lead to a solution too?! at least it SEEMS to work for my problem which is, i think, kind of similar.. this would be much easier..