Aerodynamic optimization of unmanned aerial vehicle for offshore search and rescue (SAR) operation

Abstract

Abstract Workers on offshore oils rigs are constantly risking their lives due to the location of these rigs in the middle of the ocean. One of the biggest risks to these workers are falling from the rigs and drowning especially during bad weather. Operating UAVs can reduce the risks of injury, human errors and enhances inspections, surveying and emergency operations. The applications of UAVs in offshore tasks are discussed in this paper as well as the aerodynamic optimization of UAV’s propellers. Computational Fluid Dynamics (CFD) analysis and experimental procedures were conducted on multiple propeller alternatives to determine the drag and lift properties and selecting the optimal option based on the lift to drag ratio and desired output. The CFD analysis and the experimental test found that the medium sized (9.0 x 4.5 in) propellers were the optimal option with a drag to lift ratio of 1.75.