### 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×l0^{5} is close to the experimental result that is 30% lower than that at Reynolds number of I×10^{4}. Flow around a spinning golf ball is also simulated.

Original language | English |
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Publication status | Published - 2001 Dec 1 |

Event | 15th AIAA Computational Fluid Dynamics Conference 2001 - Anaheim, CA, United States Duration: 2001 Jun 11 → 2001 Jun 14 |

### Other

Other | 15th AIAA Computational Fluid Dynamics Conference 2001 |
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Country | United States |

City | Anaheim, CA |

Period | 01/6/11 → 01/6/14 |

### ASJC Scopus subject areas

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

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## Cite this

*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.