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Wind and Structures
  Volume 17, Number 2, August 2013, pages 123-133
DOI: http://dx.doi.org/10.12989/was.2013.17.2.123
 


A proposed model of the pressure field in a downburst
Z. Tang and L.Y. Lu

 
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.
 
Key Words
    thunderstorm downburst; pressure field; large eddy simulation
 
Address
Z. Tang and L.Y. Lu : Key Laboratory for RC & PC Structures of Ministry of Education, Southeast University, Nanjing 210096, China
 

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