Numerical and experimental study of flow around a golf ball with dimples by Laser-Doppler anemometer technique

Many engineering applications have a flow of bluff body like flow over a spherical object, though it was not investigated thoroughly due to the difficulty in the real-life manufacturing and approach of computational fluid dynamics (CFD). Flow pattern and Hydrodynamics of the flow around the spherical object are the chief tasks to investigate. This paper study the flow of fluid over a golf ball with dimples both experimentally and numerically. The experimental measuring section consists of a square cross-section channel with the dimpled golf ball placed inside whereas RANS equations were solved for the numerical simulations. Three diverse flow regimes were used for the flow field velocity for the experimental and numerical investigations (Re = 8×103, 2×104, and 4×104). Moreover, the Reynolds numbers range was widened in the numerical investigations to (Re = 270×106). For the turbulent numerical simulations, the RANS model was utilized which gave good results compared to the other turbulent models.