diffusivity equation

[sleepy]

how is diffusivity equation solved in radial flow,unsteady state,porous media in oil reservoirs

 

[mmm4444bot]

Are you expecting to use a numerical method?

Please post the equation, and indicate for what you are trying to solve.

Here is a reference: http://www.pe.tamu.edu/blasingame/data/ ... _Solns.pdf

 

[Deleted member 4993]

how is diffusivity equation solved in radial flow,unsteady state,porous media in oil reservoirs

If the media is isotropic and infinite, it has been solved analytically (okay semi-analytically). The solution would be an "error-function (erf). There are many references to this problem solution. There is a "heat conduction" book by Carslaw and Jaeger - it has the solution.

Use Google - you should be "alert" enough to do that....

 

[sleepy]

thank you! Subhotosh Khan.