Symmetric finite element computation of convection-diffusion equations on a URR machine

  • Masahisa Tabata
  • Yoshiichi Ozeki
  • Hozumi Hamada


We approximate convection-diffusion equations with irrotational flows by a symmetric finite element formulation. Since very large real numbers appear in this formulation, we realize it on a URR (an internal representation method of real numbers) machine where practically no overflow/underflow occurs. Numerical results show that this formulation is applicable for sufficiently high Peclet number problems and is promising in terms of computation time and storage.

Key words

convection-diffusion equations finite element method symmetric scheme overflow internal representation 


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Copyright information

© JJIAM Publishing Committee 1991

Authors and Affiliations

  • Masahisa Tabata
    • 1
  • Yoshiichi Ozeki
    • 1
  • Hozumi Hamada
    • 1
  1. 1.Department of Computer Science and Information-MathematicsThe University of Electro-CommunicationsChofu, TokyoJapan

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