Computational analysis of separated flow around a golf ball using unstructured grid CFD

Takuma Kato, Takeshi Fujitaf, Yasushi Itor, Kazuhiro Nakahashi, Yasuaki Kohama

    Research output: Contribution to conferencePaper

    3 Citations (Scopus)

    Abstract

    Flow around a golf ball is numerically simulated using an unstructured grid method. The golf ball surface with 480 dimples is modeled by CATIA-CAD software. The surface is triangulated using the advancing front method that accurately keeps the edges of the surface dimples. A hybrid grid where the prismatic cells are used in the wall boundary layers and the tetrahedral cells fill in the remaining region discretizes the computational space. The compressible Navier-Stokes equations are solved by a finite volume cell-vertex upwind scheme with the Lower-Upper Symmetric Gauss-Seidel time-integration method. The computational result shows the essential features of the separated flow around the golf ball. The computed drag coefficients at Reynolds number of 2×l05 is close to the experimental result that is 30% lower than that at Reynolds number of I×104. Flow around a spinning golf ball is also simulated.

    Original languageEnglish
    Publication statusPublished - 2001 Dec 1
    Event15th AIAA Computational Fluid Dynamics Conference 2001 - Anaheim, CA, United States
    Duration: 2001 Jun 112001 Jun 14

    Other

    Other15th AIAA Computational Fluid Dynamics Conference 2001
    CountryUnited States
    CityAnaheim, CA
    Period01/6/1101/6/14

    ASJC Scopus subject areas

    • Fluid Flow and Transfer Processes
    • Energy Engineering and Power Technology
    • Aerospace Engineering
    • Mechanical Engineering

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  • Cite this

    Kato, T., Fujitaf, T., Itor, Y., Nakahashi, K., & Kohama, Y. (2001). Computational analysis of separated flow around a golf ball using unstructured grid CFD. Paper presented at 15th AIAA Computational Fluid Dynamics Conference 2001, Anaheim, CA, United States.