Wind and Structures

Techno-Press (테크노프레스)
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Pressure and velocity fluctuations in the atmospheric boundary layer

  • Sterling, M. (School of Engineering, The University of Birmingham) ;
  • Baker, C.J. (School of Engineering, The University of Birmingham) ;
  • Quinn, A.D. (Silsoe Research Institute) ;
  • Hoxey, R.P. (Silsoe Research Institute)
  • Received : 2004.04.19
  • Accepted : 2004.12.02
  • Published : 2005.02.25
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Abstract

This paper presents an analysis of wind velocity and pressure data obtained in a rural environment with a view to identifying the vortex structures present within the flow and examining the relationship between pressure and dynamic pressure. The data is analysed using both conventional analysis and conditional sampling. A method examining the eigenvalues of a matrix formed by the addition of the square of the strain tensor and the square of the vorticity tensor is also investigated. This method illustrates that there are a number of vortex structures present in the flow. The work presented in this paper suggests that the extreme events occur as a result of the superposition of two independent mechanisms.

Keywords

References

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