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January 11, 2012, 12:13 
How to calculate geometry diameter using UDF

#1 
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I dont expect to get any answer as always but any ways...
I have a cylindrical geometry with varying diameter from top to bottom. I want to specify heat loss condition since the wall is insulated. For that, I need to calculate overall heat transfer coefficient first. For that I need the inside diameter as well. Since diameter is not constant throughout the geometry, I have to find a way of calculating the distance from the centre of geometry up to the wall using UDF. Can any one help me in this? Thanks. 

January 14, 2012, 17:43 

#2  
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If you can describe your geometry before you run the simulation (it sounds like the equation for a cone), you could simply write a UDF to DEFINE_PROFILE for the heat transfer as a function of cone height.
If you write the equation of your geometry and the heat loss condition, I'll reply with a UDF which will allow you to do what you want. ComputerGuy Quote:


January 15, 2012, 06:32 

#3  
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Quote:
Thanks but I got a better solution. I can now calculate the coordinates of the nodes and using that I can get the radius. I got the solution from here: http://capeforum.com/index.php/topic,2.0.html 

January 15, 2012, 09:23 

#4  
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Yep  this is virtually the same solution. Glad you got your problem worked out.
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