Aluminium<solid> to Aluminium <liquid> conversion in material panel

zino · April 17, 2011, 13:14

Hi!
I m facing a problem in defining aluminium liquid at high temperature through Material panel in FLUENT.
can anyone have idea? what if i define new properties by overwriting water<liquid> but viscosity in that case is unknown.so, in that case should i take water's viscosity?

svp · April 22, 2011, 10:25

I am assuming the viscosity of water is going to be much less than what you would want to simulate for viscosity of molten aluminum. You should probably look up material property tables for molten aluminum that give you a value of viscosity in the temperature range you are interested in (might be difficult to find). Even if you were to find a an equation for viscosity as a function of temperature, you could and probably should implement it using a UDF.

zino · April 25, 2011, 12:02

Thanks for replying svp
yes. it is

zino · April 25, 2011, 12:04

Quote:

Originally Posted by svp

I am assuming the viscosity of water is going to be much less than what you would want to simulate for viscosity of molten aluminum. You should probably look up material property tables for molten aluminum that give you a value of viscosity in the temperature range you are interested in (might be difficult to find). Even if you were to find a an equation for viscosity as a function of temperature, you could and probably should implement it using a UDF.

.
Yes I searched a lot and it seems i have to put some supposed value.
should I take value for liquid water as alumina liquid?

April 17, 2011, 13:14	Aluminium<solid> to Aluminium <liquid> conversion in material panel	#1
zino New Member zino Join Date: Mar 2010 Posts: 23 Rep Power: 16	Hi! I m facing a problem in defining aluminium liquid at high temperature through Material panel in FLUENT. can anyone have idea? what if i define new properties by overwriting water<liquid> but viscosity in that case is unknown.so, in that case should i take water's viscosity?

April 22, 2011, 10:25	Re:	#2
svp New Member Join Date: Dec 2010 Posts: 16 Rep Power: 15	I am assuming the viscosity of water is going to be much less than what you would want to simulate for viscosity of molten aluminum. You should probably look up material property tables for molten aluminum that give you a value of viscosity in the temperature range you are interested in (might be difficult to find). Even if you were to find a an equation for viscosity as a function of temperature, you could and probably should implement it using a UDF.

April 25, 2011, 12:02	searched	#3
zino New Member zino Join Date: Mar 2010 Posts: 23 Rep Power: 16	Thanks for replying svp yes. it is Last edited by zino; April 25, 2011 at 12:31.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
why can't I delete aluminum in Material panel	sean	FLUENT	11	April 7, 2024 12:26
mass flow in is not equal to mass flow out	saii	CFX	12	March 19, 2018 06:21
Constant velocity of the material	Sas	CFX	15	July 13, 2010 09:56
physical properties in material panel.	NEIL	FLUENT	0	April 26, 2007 15:30
Two-Phase Buoyant Flow Issue	Miguel Baritto	CFX	4	August 31, 2006 13:02