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

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 April 17, 2011, 12:14 Aluminium to Aluminium conversion in material panel #1 New Member   zino Join Date: Mar 2010 Posts: 23 Rep Power: 9 Sponsored Links 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 but viscosity in that case is unknown.so, in that case should i take water's viscosity?

 April 22, 2011, 09:25 Re: #2 New Member   Join Date: Dec 2010 Posts: 16 Rep Power: 8 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, 11:02 searched #3 New Member   zino Join Date: Mar 2010 Posts: 23 Rep Power: 9 Thanks for replying svp yes. it is Last edited by zino; April 25, 2011 at 11:31.

April 25, 2011, 11:04
#4
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zino
Join Date: Mar 2010
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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?

Last edited by zino; April 25, 2011 at 11:32.

 Tags aluminium, material, material properties

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