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Volume 31 Issue 5
Nov 2017
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Chinese Journal of High Pressure Physics  > 2017  >  31(5): 619-628.
XU Wei-Zheng, WU Wei-Guo. Effects of Size of Venting Holes on the Characteristics of Quasi-Static Overpressure in Confined Space[J]. Chinese Journal of High Pressure Physics, 2017, 31(5): 619-628. doi: 10.11858/gywlxb.2017.05.016
Citation: XU Wei-Zheng, WU Wei-Guo. Effects of Size of Venting Holes on the Characteristics of Quasi-Static Overpressure in Confined Space[J]. Chinese Journal of High Pressure Physics, 2017, 31(5): 619-628. doi: 10.11858/gywlxb.2017.05.016
shu

Effects of Size of Venting Holes on the Characteristics of Quasi-Static Overpressure in Confined Space

doi: 10.11858/gywlxb.2017.05.016
  • 1.

    Key Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, Wuhan 430063, China

  • 2.

    Departments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, China

  • Received Date: 17 Nov 2016
  • Rev Recd Date: 19 Jan 2017
    Abstract
  • The blast load generated by energetic materials in a confined space consists mainly of transient shock waves and the long-lasting quasi-static overpressure.In order to investigate the effects of the size of venting holes on the characteristics of the quasi-static overpressure in a confined space, a 3D high resolution hydro-code was developed in the present work implementing the third-order WENO scheme based on the FORTRAN platform.First, the problems of the Sod shock tube, the interacting blast wave and the shock entropy wave interaction were simulated to validate the code.Then, the validated code was used to simulate the blast waves generated by condensed explosives in a confined space.A simplified analytical model was proposed to describe the quasi-static overpressure, which agreed well with the simulation results.The research done in this paper can be used to provide reliable input load for the design of anti-explosion engineering structures.

     

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