Effects of non-stationarity of downburst on the wind loading of buildings

Natsumi Hoshino, Yumi Iida, Yasushi Uematsu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The wind characteristics of downbursts are significantly different from those of turbulent boundary layers. The non-stationarity, especially a severe moving downdraft and strong divergent outflow near ground, causes serious damage to buildings. In the past, few studies have focused on downbursts and downburst-induced wind loads on buildings. Therefore, the present study investigates the characteristics of downburst and its effects on buildings, based on two kinds of experiments using a pulsed wall jet and a moving wall jet. Special attention is paid to the effects of the non-stationarity of downburst on the wind pressure and force coefficients acting on buildings with flat and gable roofs. A brief discussion is made of the evaluation method of downburst wind loads on buildings.

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalJournal of Wind Engineering
Volume43
Issue number1
DOIs
Publication statusPublished - 2018 Jan

Keywords

  • Downburst
  • Moving wall jet experiment
  • Non-stationary flow
  • Pulsed wall jet experiment
  • Windforce coefficient

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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