@inproceedings{7b46fbb8694748ce9b3433446e0a056b,
title = "Flow analysis around golf balls without and with spinning",
abstract = "Flows fields around stationary and spinning golf balls are numerically simulated solving the compressible Navier-Stokes equations on unstructured grids. Two types of dimple geometries for golf balls are selected with smooth and steep edges. Two flow conditions are 1) Reynolds number of 1.67×105 (Mach number 0.17) at 2400 rpm and 2) Reynolds number of 8.48×104 (Mach number 0.082) at 2070 rpm. These correspond to drive shot flow conditions of a golf ball after shot off and before fall down, respectively. Flow fields for investigation of the effects of flow conditions are visualized with velocity contours, surface flow, separation/reattachment lines, and vortex magnitude contours. Section pressure and streamwise velocity gradient distributions are shown for the effects of dimple geometries. Drag and lift coefficients of numerical simulation and experiment show qualitatively good agreement with each other.",
author = "Kim, {Hyoung Chol} and Kim, {Hyoung Jin} and Kazuhiro Nakahashi and Takuma Kato and Masaya Tsunoda",
year = "2006",
doi = "10.2514/6.2006-2996",
language = "English",
isbn = "1563478129",
series = "Collection of Technical Papers - AIAA Applied Aerodynamics Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
pages = "637--651",
booktitle = "Collection of Technical Papers - 24th AIAA Applied Aerodynamics Conference",
note = "24th AIAA Applied Aerodynamics Conference ; Conference date: 05-06-2006 Through 08-06-2006",
}