Volume 32 Issue 06
Jun.  2006
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Fu Guicui, Wang Xiangfen, Jiang Tongminet al. Finite volume method in thermal analysis of avionics[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 716-720. (in Chinese)
Citation: Fu Guicui, Wang Xiangfen, Jiang Tongminet al. Finite volume method in thermal analysis of avionics[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 716-720. (in Chinese)

Finite volume method in thermal analysis of avionics

  • Received Date: 29 Jun 2005
  • Publish Date: 30 Jun 2006
  • The influence of heat to the system reliability was introduced. The merits and drawback of numerical methods in solving temperature distribution were compared. In order to solve the problem of avionics of high reliability which requires highly precise result and rapidly computational velocity in thermal analysis, a computed approach of the finite volume method (FVM) to solve the temperature distribution was devoloped. The mathematical model of temperature distribution was built based on typical avionics and its boundary condition was given. Then the control equation was discretized by means of the FVM. The mesh division, the process of discretization and the disposal of boundary were included. The temperature distribution was calculated with an example. The comparison between the result of calculation and the result of measurement demonstrates a high precision of thermal analysis. The validity of this method was verified. The reason of calculated error was indicated and a reasonable proposal about further thermal design based on the result was offered in the end.

     

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