Calculation Of Air Flow over Terrain With Obstacles Using Immersed Boundary Method in Curvilinear Coordinates

DOI

Bibliographic Information

Other Title
  • 曲線座標にIB法を用いた障害物のある地形上気流解析法

Description

An Immersed Boundary Method (IBM) has been incorporated in a finite-difference code to solve the air flow using the boundary-fitted general curvilinear coordinate system. In the present work IB method has been extended to be used in the boundary fitted coordinate system in order to represent complex objects on curving boundaries, such as undulating terrain with buildings and other objects. It is found that the IBM technique incorporated in a sigma-coordinate system in which the first coordinate follows the boundary representing the terrain and the second coordinate axis is taken in the straight vertical direction is most appropriate in both accuracy and efficiency, and is suited for calculating flow over topography with objects of various shapes.

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Keywords

Details 詳細情報について

  • CRID
    1390282680570295936
  • NII Article ID
    130005021447
  • DOI
    10.14887/kazekosymp.21.0.55.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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