Influence of dynamic shrinkage on pressure calculation -- CFD Online Discussion Forums

May 25, 2010, 11:45

Influence of dynamic shrinkage on pressure calculation

jk75

New Member

Johannes Köpf

Join Date: May 2009

Location: Germany

Posts: 29

Rep Power: 17

Hi All,

I have two almost identical calculations. The only difference is one is calculated with the dynamic shrinkage model the other without shrinkage. Both calculation show different pressure - from the very first step till the end (see attached images). Can anybody explain me this?

Best regards,
Johannes

Attached Images

	squeeze-pin_micropor_V6d_pressure_end_sm.jpg (76.0 KB, 14 views)
	squeeze-pin_micropor_V6e_pressure_end_sm.jpg (75.7 KB, 13 views)

May 27, 2010, 07:37	solved	#2
jk75 New Member Johannes Köpf Join Date: May 2009 Location: Germany Posts: 29 Rep Power: 17	Gravity pointed in another direction than the initial hydrostatic pressure. That seemd to be the reason for this strange behaviour.

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