Research in Modeling Method for Modularizing CFD Element of Square Ceiling Diffuser

DOI

Bibliographic Information

Other Title
  • 角型のアネモスタット型吹出し口を対象としたCFDパーツのモデリング手法に関する研究
  • Part 1-Application and Validation of the Momentum Method for Horizontal Cold Jet
  • 第１報−水平吹出し時におけるMomentum法の適用と検証

Abstract

<p>In CFD analysis, in the HVAC engineering field, it is necessary to reproduce with high accuracy the airflow characteristics of outlets when predicting the airflow distribution in a room. However, most of the outlets installed in the room have complicated shapes. Considering the calculation time and workload for CFD analysis, it is difficult to reproduce the detailed shapes of the outlets at the design stage. Therefore, in this research, we study the airflow characteristics of square ceiling diffusers whose airflow properties are complex, and study how to set the CFD parts for general-purpose use. In this report, we conducted an experiment to visualize the airflow surrounding the diffusers, and derived the airflow characteristics. We then examined the method of setting the boundary conditions when applying the momentum method to a structural grid CFD, and compared the analytical results with the experimental results. We confirmed that it is possible to calculate the spread radius and the temperature distribution inside the room with practically satisfactory accuracy in the design stage. </p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390845713065218304
  • NII Article ID
    130007642522
  • DOI
    10.18948/shase.43.254_43
  • ISSN
    24240486
    0385275X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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