EXAMINING ASM BY MEANS OF WIND TUNNEL TEST, LES AND DSM NUMERICAL SIMULATION OF ANISOTROPIC TURBULENT FLOWFIELD : Around cubic model by means of ASM

• OOKA Ryozo

  Institute of Industrial Science, University of Tokyo

• MOCHIDA Akashi

  Dept. of Architecture and Building Engineering, Niigata Institute of Technology

• MURAKAMI Shuzo

  Institute of Industrial Science, University of Tokyo

• HAYASHI Yoshihiko

  Buildig Research Institute, Ministry of Construction

Bibliographic Information

Other Title

• 風洞実験及びLES,DSMとの比較によるASMの精度・問題点の検討 : ASMによる立方体周辺の非等方乱流場の数値解析
• フウドウ ジッケン オヨビ LES DSM ト ノ ヒカク ニヨル ASM ノ
• Examining ASM by means of wind tunnel test, LES, and DSM numerical simulation of anisotropic turbulent flowfield

Abstract

A three - dimensional turbulent flowfield around a cube placed in a surface boundary layer is predicted using Algebraic Stress Model (ASM) and Differential Stress Model (DSM). The results from these models are compared with those of wind tunnel tests conducted by the authors, and Large Eddy Simulation (LES). The overestimation of turbulent energy values around the frontal corner occurred in the k-e model are corrected by ASM. But ASM cannot reproduce anisotropic properties of each component of normal stresses in the area above the frontal corner while these discrepancies do not appear in the results of DSM. The differences between the results from two models are derived from the expression of convection and diffusion terms of transport equation of <u_i'u_j'>. Algebraic approximation in the case of ASM is examined precisely by the numerical data given by LES.

Journal

• Journal of Architecture and Planning (Transactions of AIJ)

  Journal of Architecture and Planning (Transactions of AIJ) 62 (495), 61-68, 1997

  Architectural Institute of Japan

Keywords

• Algebraic Stress Model (ASM)
• Differential Stress Model (DSM)
• anisotropic turbulent flowfield around a cube

Details

• CRID: 1390001204782954880
• NII Article ID: 110004654665
• NII Book ID: AN10438548
• DOI: 10.3130/aija.62.61_3
• ISSN: 18818161
• ISSN: 13404210
• NDL BIB ID: 4215470
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4215470
• Web Site: https://www.jstage.jst.go.jp/article/aija/62/495/62_KJ00004222058/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed