FE and FD method for transient 2d diffusion problem

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1 total messages Started by Yanling Qi Fri, 31 Jul 1992 21:09

#160

Author: Yanling Qi
Date: Fri, 31 Jul 1992 21:09

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Hello,

   It is said that solving a 2-d transient-state diffusion problem by finite
element method is very expensive comparing with the finite-difference ADI
method specialy when the coefficients (material properties) are  functions
of time. Can anyone there direct me some references about this topic ?
  My question may be clarified as follows: 
      (1) what is most expensive part in the finite element processing for 
          the problem ?, and
      (2) how more  expensive the FE method is than FD-ADI method for
          a same problem (in a simple geometrical domain and for a simple
          boundary problem)?

 Thank you very much!


---yanling
   (xxvb746@hermes.chpc.utexas.edu)

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