Single-point subdomain precise integration and multi-point subdomain precise integration
  Revised:April 20, 2004
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DOI:10.7511/jslx20063069
KeyWord:finite difference,subdomain precise integration,stability,heat conduction equation
LAI Yong-xing  LIU Min-shan  DONG Qi-wu
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Abstract:
      Based on single-point subdomain precise integration method,a multi-point subdomain precise integration method for heat conduction equation of parabolic type is proposed in this paper and a multi-point subdomain precise integration scheme(forward for time;center for space) is obtained.The scheme is of the explicit difference type and is unconditionally stable.The results of calculation show that the convergent speed of the multi-point subdomain precise integration scheme in this paper is faster than the single-point subdomain precise integration scheme.