On the Range of Influence of the Terrain on the Flow Field in the Hills

DOI
  • Yamada Hinano
    Graduate School, Kochi University
  • Noda Minoru
    Science and Technology Unit, Natural Sciences Cluster, Research and Education Faculty, Kochi University

Bibliographic Information

Other Title
  • 丘陵地帯の流れ場に対する地形の影響範囲について

Description

<p>In this study, the wind direction was divided into 64 directions, and the influence of the surrounding topography on the flow field at a specific point in the hilly area was examined by numerical fluid simulation using a standard k-ε model based on RANS. As a result, it was confirmed that hills and valleys affected the flow field. In addition, by subdividing the wind direction, detailed changes in the wind speed ratio distribution with respect to changes in the wind direction were obtained, and two typical types of wind speed ratio distributions could be confirmed. Furthermore, many results suggest that the basic wind speed ratio distribution is characterized by terrain within a radius of 1 km, and it was found that distant terrain may strongly affect the wind speed ratio in a specific wind direction.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390851320454075136
  • NII Article ID
    130008052687
  • DOI
    10.14887/jaweam.2021.0_137
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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