UDF for heat transfer coefficient

YSim · December 15, 2004, 19:18

I have written a UDF for heat transfer coefficient which changes as a function of the surface temperature.Its a natural convection problem. Any1 here who has done this before?

I can post the UDF if any1 is familiar with this.

Thanks and Regards, Shankar.

December 25, 2004, 01:37

Can you post me a copy?

gopi.diwakar0 · September 2, 2010, 06:41

can you post me a copy of your user defined function

emmkell · September 13, 2010, 13:09

Hi Shankar

I've pretty new to UDF writing so i've been searching to see if i could find any examples of this UDF, as I need the exact same for my Fluent testing.

I see you posted this in 2004 but I wonder is there any chance you still have this UDF?

Or has anyone else got anything similar? My problem is working out a way to vary the heat transfer coefficient with temperature after each time step, ie having the udf figure out what the surface temperature is and then calculating h for that temperature for each time step before moving on to calculate the next surface temperature (I assume by applying Grashof -> Nusselt -> h calculations in each step of the UDF)

alighasemian · June 6, 2012, 06:50

Hi, can you send a copy to me?
this is my email: ghasemian.a@gmail.com

alighasemian · June 6, 2012, 07:08

Hi, Did you get a copy from the heat transfer UDF?
could you send me a copy?
this is my email: ghasemian.a@gmail.com

alighasemian · June 6, 2012, 07:10

Hi, Did you get a copy from the heat transfer UDF?
could you send me a copy?
this is my email: ghasemian.a@gmail.com

Boo85 · July 10, 2012, 09:19

Hello everyone, can i get a copy of that UDF too? i would be doing something similar. Thanks alot!

my email is dropmemail@gmail.com

syavash · August 9, 2012, 23:09

Dear Shankar, would you please send me a copy of your udf for calculating Heat transfer coefficient?
Syavash_azna@yahoo.com

tnx in advance.

Konda Reddy · February 18, 2013, 10:13

Dear Shankar, Can you please share UDF for heat transfer coefficient which changes as a function of wall temperature. My E-mail id: bogala.kondareddy@gmail.com

December 15, 2004, 19:18	UDF for heat transfer coefficient	#1
Shankar Guest Posts: n/a	I have written a UDF for heat transfer coefficient which changes as a function of the surface temperature.Its a natural convection problem. Any1 here who has done this before? I can post the UDF if any1 is familiar with this. Thanks and Regards, Shankar. YSim likes this.

December 25, 2004, 01:37	Re: UDF for heat transfer coefficient	#2
as Guest Posts: n/a	Can you post me a copy?

February 18, 2013, 10:13	UDF for heat transfer coefficient which changes as a function of wall temperature	#10
Konda Reddy New Member Konda Reddy Join Date: Feb 2013 Posts: 1 Rep Power: 0	Dear Shankar, Can you please share UDF for heat transfer coefficient which changes as a function of wall temperature. My E-mail id: bogala.kondareddy@gmail.com

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September 2, 2010, 06:41		#3
gopi.diwakar0 New Member Lutukurthi D.N.V.V.KONDA Join Date: Jul 2010 Posts: 1 Rep Power: 0	can you post me a copy of your user defined function

September 13, 2010, 13:09		#4
emmkell New Member Emma Join Date: Sep 2009 Posts: 17 Blog Entries: 1 Rep Power: 17	Hi Shankar I've pretty new to UDF writing so i've been searching to see if i could find any examples of this UDF, as I need the exact same for my Fluent testing. I see you posted this in 2004 but I wonder is there any chance you still have this UDF? Or has anyone else got anything similar? My problem is working out a way to vary the heat transfer coefficient with temperature after each time step, ie having the udf figure out what the surface temperature is and then calculating h for that temperature for each time step before moving on to calculate the next surface temperature (I assume by applying Grashof -> Nusselt -> h calculations in each step of the UDF)

June 6, 2012, 06:50		#5
alighasemian New Member Ali Join Date: Jun 2012 Posts: 6 Rep Power: 14	Hi, can you send a copy to me? this is my email: ghasemian.a@gmail.com

June 6, 2012, 07:08		#6
alighasemian New Member Ali Join Date: Jun 2012 Posts: 6 Rep Power: 14	Hi, Did you get a copy from the heat transfer UDF? could you send me a copy? this is my email: ghasemian.a@gmail.com

June 6, 2012, 07:10		#7
alighasemian New Member Ali Join Date: Jun 2012 Posts: 6 Rep Power: 14	Hi, Did you get a copy from the heat transfer UDF? could you send me a copy? this is my email: ghasemian.a@gmail.com

July 10, 2012, 09:19		#8
Boo85 New Member Chun Wheng Join Date: Aug 2011 Posts: 5 Rep Power: 15	Hello everyone, can i get a copy of that UDF too? i would be doing something similar. Thanks alot! my email is dropmemail@gmail.com

August 9, 2012, 23:09		#9
syavash Senior Member Ehsan Asgari Join Date: Apr 2010 Posts: 473 Rep Power: 18	Dear Shankar, would you please send me a copy of your udf for calculating Heat transfer coefficient? Syavash_azna@yahoo.com tnx in advance.