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Wind and Structures
  Volume 17, Number 5, November 2013 , pages 465-477

Effect of parapets to pressure distribution on flat top of a finite cylinder
Y. Ozmen

    In this paper, the effects of parapets on the mean and fluctuating wind pressures which are acting on a flat top of a finite cylinder vertically placed on a flat plate have experimentally been investigated. The aspect ratio (AR) of cylinder is 1 and the Reynolds number (Re) based on cylinder diameter and free stream velocity is 150000. The pressure distributions on the flat top and the side wall of the finite cylinder immersed in a simulated atmospheric boundary layer have been obtained for different parapet heights. The large magnitudes of mean and minimum suction pressures occurring near the leading edge were measured for the cases with and without parapet. They shift to the further downstream on the circular top with increasing parapet height. It is seen that the parapets reduce the local high suction on the top up to 24%.
Key Words
    parapet; suction pressure; flat top; finite cylinder; wind tunnel
Y. Ozmen : Department of Mechanical Engineering, Karadeniz Technical University, Trabzon 61080, Turkey

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