Hello everyone I wish to do research work in the variational formulation of annular fins..
coud be used cilindric system. And used solution from fin in no constan area Heat Transfer by Chaman
Also be used frobenius diferencial equation
Thank u very much Mr. Juan .
You can work also with minimun funcional of you physical phenomenon
Please check references below.. hope it will be helpful for you… Regards…
http://www.arpnjournals.org/jeas/research_papers/rp_2016/jeas_0416_4079.pdf
https://pdfs.semanticscholar.org/92cb/0b642c627b4311286b7e51e38b7a288868de.pdf
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