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A proposed model of the pressure field in a downburst

  • Tang, Z. (Key Laboratory for RC & PC Structures of Ministry of Education, Southeast University) ;
  • Lu, L.Y. (Key Laboratory for RC & PC Structures of Ministry of Education, Southeast University)
  • Received : 2011.01.25
  • Accepted : 2012.09.24
  • Published : 2013.08.25

Abstract

Pressure field and velocity profiles in a thunderstorm downburst are significantly different from that of an atmospheric boundary layer wind. A model of the pressure field in a downburst is presented in accordance with the experimental and numerical results. Large eddy simulation method is employed to investigate transient pressure field on impingement ground of a downburst. In addition, velocity profiles of the downburst are studied, and good agreement is achieved between the present results and the data obtained from empirical models.

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