(it is very hard)solution problem in diffusion equation?

Darioush Khodabakhshi @Darioush_Khodabakhshi2

11 November 2015 1 2K Report

Hello.how can explain stage of solution of diffusion equation through a cylinder?

(it is very hard.help me please).Please see attached file.

The deduction of this solution can be consulted in the paper,

Zanchini, E. & Pulvirenti, B. (2013). An analytical solution for the temperature field around a cylindrical surface subjected to a time dependent heat flux. International Journal of Heat and Mass Transfer. 66, 906-910.

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