CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2006, Vol. 23 ›› Issue (4): 436-440.

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Numerical Method for a Kind of Singular Complex Eigenequations

LONG Yong-xing, MU Zong-ze, WANG Ai-ke, Dong Jia-qi   

  1. Southwesten Institute of Physics, Chengdu 610041, China
  • Received:2005-03-16 Revised:2005-08-24 Online:2006-07-25 Published:2006-07-25

Abstract: A numerical method and a code for seeking complex eigenvalues are given with the fundamental matrix method.The treatment of singularity,complex eigenvalue and numerical instability are discussed. The method is used to simulate the instability driven by a temperature gradient [ηi].Numerical results agree well with theoretical analyses.

Key words: singularity, fundamental matrix method, complex eigenvalue, numerical simulation

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