Numerical simulation of flow over topographic features by revised k - ε models

Yu Fat Lun, Akashi Mochida, Shuzo Murakami, Hiroshi Yoshino, Taichi Shirasawa

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

The accurate prediction of the wind energy distribution over terrains is important for making an appropriate selection of a suitable site for installing wind power plant. In this study, two-dimensional numerical simulations of flow over two common types of topographic features, i.e. a cliff and a hill, are presented. Three types of turbulence models, namely standard k - ε and its revised linear form (Durbin model) as well as a revised nonlinear form (Shih model) are employed in this work. The performance of these models in predicting flow over these features is investigated. The accuracy of the prediction by using a z0 type wall function to reproduce the effect of surface roughness on flowfield from these turbulence models is also examined

Original languageEnglish
Pages (from-to)231-245
Number of pages15
JournalJournal of Wind Engineering and Industrial Aerodynamics
Volume91
Issue number1-2
DOIs
Publication statusPublished - 2003 Jan

Keywords

  • Cliff
  • Durbin model
  • Flow over terrains
  • Hill
  • Revised k - ε
  • Shih model

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

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