A potential flow based flight simulator for an underwater glider

Type Article
Date 2013-03
Language English
Author(s) Phoemsapthawee Surasak1, Le Boulluec Marc2, Laurens Jean-Marc3, Deniset Francois4
Affiliation(s) 1 : International Maritime College, Kasetsart University-Si Racha Campus, Si Racha, 20230, Thailand
2 : Ifremer, RDT/HO, BP-70, Plouzané, 29280, France
3 : Ensta-Bretagne, 2 rue François Verny, Brest cedex9, 29806, France
4 : IRENav, Ecole Navale, Lanveoc, CC-600, Brest cedex9, 29240, France
Source Journal of Marine Science and Application (1671-9433) (Harbin Engineering UniversitySpringer), 2013-03 , Vol. 12 , N. 1 , P. 112-121
DOI 10.1007/s11804-013-1165-x
Keyword(s) underwater glider, hydrodynamics, potential flow, 6DOF, Newton-Euler equation, AUVs
Abstract Underwater gliders are recent innovative types of autonomous underwater vehicles (AUVs) used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change of altitude, they use the hydrodynamic forces developed by their wings to move forward. Their flights are controlled by changing the position of their centers of gravity and their buoyancy to adjust their trim and heel angles. For better flight control, the understanding of the hydrodynamic behavior and the flight mechanics of the underwater glider is necessary. A 6-DOF motion simulator is coupled with an unsteady potential flow model for this purpose. In some specific cases, the numerical study demonstrates that an inappropriate stabilizer dimension can cause counter-steering behavior. The simulator can be used to improve the automatic flight control. It can also be used for the hydrodynamic design optimization of the devices.
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