Now showing items 21-30 of 110
Toward a Platform-Independent Acoustic Communications and Navigation System for Underwater Vehicles
(IEEE, 2009-10-26)
This paper presents a platform-independent
acoustic communication (Acomms) system that enables multiple
nodes (any combination of underwater vehicles, surface
ships, and fixed beacons) to simultaneously exchange data
and ...
Solution of potential problems using an overdetermined complex boundary integral method
(Elsevier, 1989-10)
The advantages of solving potential problems using an overdetermined boundary integral element method are examined. Representing a 2-dimensional potential solution by an analytic complex function forms two algebraic systems ...
Singularity image method for electrical impedance tomography of bubbly flows
(IOP Publishing Ltd, 2003-08-01)
A singularity image method is applied to the electrical impedance tomography of gas–liquid flows in a two-dimensional circular domain. Algorithms that use analytic complex functions, dipoles and the Milne-Thomson circle ...
High Reynolds number experimentation in the US Navy's William B Morgan Large Cavitation Channel
(IOP Publishing Ltd, 2005-09-01)
The William B Morgan Large Cavitation Channel (LCC) is a large variable-pressure closed-loop water tunnel that has been operated by the US Navy in Memphis, TN, USA, since 1991. This facility is well designed for a wide ...
Spectral method solution of the Stokes equations on nonstaggered grids
(Elsevier, 1991-05)
The Stokes equations are solved using spectral methods with staggered and nonstaggered grids. Numerous ways to avoid the problem of spurious pressure modes are presented, including new techniques using the pseudospectral ...
Pose-graph Visual SLAM with Geometric Model Selection for Autonomous Underwater Ship Hull Inspection
(IEEE, 2009-10-10)
This paper reports the application of vision based
simultaneous localization and mapping (SLAM) to the problem
of autonomous ship hull inspection by an underwater
vehicle. The goal of this work is to automatically map ...
Seaborne Petrochemical Spill Analysis Within the United States, 1992–1999
(Springer-Verlag; Springer-Verlag New York Inc., 2003-04)
Static non-linear three-dimensional analysis of a riser bundle by a substructuring and incremental finite element algorithm
(John Wiley & Sons, Ltd, 1989-11)
The problem of static, non-linear, large three-dimensional deformation of riser bundles used in offshore oil and gas production is studied within the limits of small strain theory. The mathematical model consists of the ...
An Overview of Autonomous Underwater Vehicle Research and Testbed at PeRL
(Marine Technology Society, 2009)
This article provides a general overview of the autonomous underwater vehicle (AUV) research thrusts being pursued within the Perceptual Robotics Laboratory (PeRL) at the University of Michigan. Founded in 2007, PeRL’s ...
Stability of fluid in a rectangular enclosure by spectral method
(Elsevier, 1989-03)
The hydrodynamic stability of Rayleigh convection in a rectangular cavity is studied numerically. The calculation assumes that the Boussinesq fluid motion is two-dimensional. The characteristic value equations are solved ...