Numerical analysis of attenuation process of weak shock due to molecular vibrational relaxation effects

Kazuaki Hatanaka, Tsutomu Saito

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Numerical analyses are performed for attenuation of weak shock waves generated by explosion of a unit mass of TNT. Viscous and heat conduction loss and molecular vibrational relaxation effects of oxygen and nitrogen molecules are considered. The effect of each diffusion term on the wave attenuation and the wave form change is investigated in detail. In addition, the characteristics of each attenuation effect are investigated by the technique of frequency analysis.

Original languageEnglish
Pages (from-to)2058-2064
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume76
Issue number772
DOIs
Publication statusPublished - 2010 Dec

Keywords

  • Blast wave
  • Compressible flow
  • Frequency analysis
  • Molecular vibrational relaxation
  • Numerical simulation
  • RCM
  • Shock wave

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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