how to incorporate temperature dependent thermophysical properties in fluent.

CANDY · October 16, 2012, 02:25

Hi everybody;
can someone please help me how to incorporate temperature dependent thermophysical properties in fluent.

CANDY · October 17, 2012, 08:39

Some one please help me out

coglione · October 17, 2012, 11:00

Have a look in the user guide and you will see that every property can be easily defined as polynomial function of temperature in the Create/Edit Materials Dialog Box.
If the dependency is more complex, eg. there are logarithmic terms, you will have to use a user-defined-function. Search for Define Property in the udf manual.

cheers

CANDY · October 22, 2012, 05:17

I know about the polynomial function that can be written in properties but in my case logarithmic term is there how to specify that in the equations.

actually sir i dono how to write the UDF can u please help me in this.

CANDY · October 22, 2012, 05:19

I know about the polynomial function that can be written in properties but in my case logarithmic term is there how to specify that in the equations.

actually sir i dono how to write the UDF can u please help me in this.

October 22, 2012, 05:17	dear coglione,	#4
CANDY New Member CANDYMAN Join Date: Oct 2012 Posts: 6 Rep Power: 14	I know about the polynomial function that can be written in properties but in my case logarithmic term is there how to specify that in the equations. actually sir i dono how to write the UDF can u please help me in this.

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October 17, 2012, 08:39		#2
CANDY New Member CANDYMAN Join Date: Oct 2012 Posts: 6 Rep Power: 14	Some one please help me out

October 17, 2012, 11:00		#3
coglione Senior Member Max Join Date: Mar 2009 Posts: 133 Rep Power: 17	Have a look in the user guide and you will see that every property can be easily defined as polynomial function of temperature in the Create/Edit Materials Dialog Box. If the dependency is more complex, eg. there are logarithmic terms, you will have to use a user-defined-function. Search for Define Property in the udf manual. cheers

October 22, 2012, 05:19		#5
CANDY New Member CANDYMAN Join Date: Oct 2012 Posts: 6 Rep Power: 14	I know about the polynomial function that can be written in properties but in my case logarithmic term is there how to specify that in the equations. actually sir i dono how to write the UDF can u please help me in this.