Decision Method of Pressure Loss Coefficient of Windbreak Nets For CFD

DOI
  • Noda Minoru
    University of Tokushima Graduate School of Advanced Technology and Science
  • Teramoto Shintarou
    University of Tokushima Graduate School of Advanced Technology and Science
  • Akagi Koumei
    Okayama Prefectural office
  • Nagao Fumiaki
    University of Tokushima Graduate School of Advanced Technology and Science

Bibliographic Information

Other Title
  • CFDにおける防風ネットの圧力損失係数決定法に関する研究

Description

Windbreak nets are usually used as wind resistant devices. Estimations<br>of effect of windbreak nets are empirical, so the objectively and accurately estimation<br>method has been needed. One of the methods is a computational fluid<br>dynamics technique. However pressure loss coefficients of windbreak nets<br>are not clarified. In this study, pressure loss coefficients for CFD are<br>measured by wind tunnel tests, and the relation between pressure loss<br>coefficients and porosity ratio quantified by the Fourier transform of<br>images of windbreak nets were investigated. As the results of this<br>investigation, it was clarified that pressure loss coefficients of wind<br>break nets are decided by porosity ratio and diameter of fiber.<br>Moreover, PIV test showed that flow fields behind those windbreak nets<br>were reproduced by CFD including those pressure loss coefficients.

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Keywords

Details 詳細情報について

  • CRID
    1390282680569963648
  • NII Article ID
    130005478155
  • DOI
    10.14887/kazekosymp.23.0_445
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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