Parametric study of underwater glider using hydrodynamic performance approach

Today, the use of underwater robots to explorer underwater conditions has significant grown. Underwater gliders (UG) are robot of the favorite of researchers for long-time operations due to their low energy consumption. Exact the identification of dimensional parameters is critical to evaluate the hydrodynamic performance of underwater gliders, which properly can rising the efficiency of robots. In this research, an attempt has been made to first extract a nonlinear dynamic model from UG. The dynamic model has been verified with the results of related other research. After checking the accuracy of the model, dimensional parametric investigation in robot hydrodynamic performance has been performed. Parameters such as buoyancy tank volume, Pitch angle and wing geometry have been target this research. In the study of each parameter, other parameters are considered constant so that the effect of target parameter can be measured. The results indicate that parameters have a significant impact on efficiency and hydrodynamic performance of the robot. Properly designed glider can be more flexible in the face of external disturbances, and causes higher speeds can be achieved when efficiency is not very important.