Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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Numerical Investigation on the Self-Ignition of High-pressure Hydrogen in a Tube Influenced by Burst Diaphragm Shape

튜브 내 고압 수소의 파열막 형상에 따른 자발 점화 현상에 대한 수치해석

  • Received : 2013.06.25
  • Accepted : 2013.09.23
  • Published : 2013.09.30
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Abstract

Numerical simulations are conducted to investigate the feature of spontaneous ignition of hydrogen within a certain length of downstream tube released by the failure of pressure boundaries of various geometric assumption. The results show that the ignition feature can be varied with the shape of pressure boundary. The ignition at the contact region are developed at the spherical pressure boundaries due to multi-dimensional shock interactions, whereas the local ignition is developed in limited area such as boundary layer at the planar pressure boundary conditions. The spontaneous ignition inside the tube can be generated from the reaction region of only boundary layer regardless of existence of the reaction of core region.

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References

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