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Wind & structures v.8 no.1, 2005년, pp.13 - 34  

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  );
  • 초록

    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.


  • 주제어

    vortex .   vorticity .   flow structures .   conditional sampling .   pressure fluctuations.  

  • 참고문헌 (23)

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