LES of Rough Wall Boundary Layer with Quasi-periodic Condition and Synthetic Velocity Fluctuation for Generation of Inflow Turbulence

• Itoh Yoshiaki

  Kajima technical research institute

• Tamura Tetsuro

  Tokyo institute of technology

• Kondo Koji

  Kajima technical research institute

Bibliographic Information

Other Title

• 低周波模擬変動風を流入面に付加した準周期型粗面乱流境界層のLESによる流入変動風の作成

Abstract

In order to generate a rough-wall turbulent boundary layer, LES with pseudo-periodic boundary conditions and artificial fluctuation on inflow surface is carried out.  Karman-type spectrum density function of atmospheric boundary layer with large turbulence scale can be simulated as same as the property of wind tunnel tests.  As the result, the windward overturning moment in the along-wind direction can be simulated in lower frequency part.

Journal

• PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING

  PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 23 (0), 499-, 2014

  Japan Association for Wind Engineering

Keywords

• LES
• inflow turbulence
• rough wall boundary layer
• square tall building

Details

• CRID: 1390282680569873408
• NII Article ID: 130005478186
• DOI: 10.14887/kazekosymp.23.0_499
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed