Naval Postgraduate School
Prediction of hydrodynamic coefficients utilizing geometric considerations
95Dec_Holmes.pdf (2.566Mb)Abstract
A parametric study of a body of revolution is conducted utilizing existing semi-empirical methods for the calculation of hydrodynamic coefficients. The geometry of the body is analyzed in non-dimensional length and volume parameters. The effects of varying the nose, mid-body, and base fractions of the body on the hydrodynamic coefficients are generated and illustrated graphically. Equations for the hydrodynamic coefficients are then determined from the non-dimensional parameters. The results can be used to evaluate fundamental maneuvering characteristics early in the design phase.
Collections
Related items
Showing items related by title, author, creator and subject.
-
A real time autonomous underwater vehicle Dynamic Simulator
(Monterey, California: Naval Postgraduate School, 1990-12);The NPS Autonomous Underwater Vehicle Simulator is a joint project between the Naval Postgraduate School's Mechanical Engineering and Computer Science Departments. In order to test mission planning and execution software, ... -
Sway, yaw, and roll coupling effects on straight line stability of submersibles
(Monterey, California: Naval Postgraduate School, 1993-03);This thesis analyzes the sway, yaw, and roll dynamic stability of neutrally buoyant submersibles. Utilizing the hydrodynamic coefficients for a Mark IX Swimmer Delivery Vehicle (SDV) as a base-line model, the ... -
Hopf bifurcation analysis for depth control of submersible vehicles
(Monterey, California. Naval Postgraduate School, 1993-12);Control of a modern submarine is a multi-dimensional problem coupling initial stability, hydrodynamic and control system response. The loss of stability at moderate to high speeds is examined using a nonlinear Hopf bifurcation ...
