Hydrodynamics plays a significant role in determining the flow over surfaces. This study aims at investigating the hydrodynamics of flow over dimples. Roughness created by the dimples generates favorable pressure gradient for lift generation at the expense of drag which largely consists of pressure drag. The efficiency of dimple is found to be more at the location where boundary separation occurs. The foils were investigated at four different velocities and different angles of attack wherein it was found to improve the stall characteristics marginally. In all, this project identifies if dimples can help achieve better hydrodynamic efficiency of hydrofoils.

This content is only available via PDF.
You can access this article if you purchase or spend a download.