interface between molten metal and air

hb12 · April 26, 2015, 15:18

Hi everyone,

I try to model movement of molten steel free surface. When I use surface tension value greater than ~0.04 N/m, velocity increases to very high and non-physical values and also velocity magnitude in the bulk decreases too much.

it should be mentioned that when water surface tension is used, results are reasonable.

do you have any advice for this case?

vasava · April 29, 2015, 06:17

You may want want to check the location of the reference pressure. Chose the point which is all the time occupied by the lighter phase.

April 26, 2015, 15:18	interface between molten metal and air	#1
hb12 New Member HBarati Join Date: Nov 2014 Posts: 3 Rep Power: 11	Hi everyone, I try to model movement of molten steel free surface. When I use surface tension value greater than ~0.04 N/m, velocity increases to very high and non-physical values and also velocity magnitude in the bulk decreases too much. it should be mentioned that when water surface tension is used, results are reasonable. do you have any advice for this case?

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April 29, 2015, 06:17		#2
vasava Senior Member Paritosh Vasava Join Date: Oct 2012 Location: Lappeenranta, Finland Posts: 732 Rep Power: 22	You may want want to check the location of the reference pressure. Chose the point which is all the time occupied by the lighter phase.