I am going to write some UDF and implement them to ansys fluent 18. any useful tutorials on how to write some UDF under nucleate pool boiling process. I will be grateful for helping. Thanks in advance.
You need first a mechanistic model for bubble departure diameter prediction during pool boiling condition. Once you have the right physics, it is quite easy to write the UDF.
I recommend you to read this paper :
"Bubble Departure Diameter Prediction Uncertainty", Marko Matkovič & Boštjan Končar, Science and Technology of Nuclear Installations Volume 2012.
Contact Ferenc Hegedűs at the Department of Hydrodynamic Systems on the third floor. He has a vast experience in the field of bubble dynamics under his belt.