Mechanical Engineering Commons^™

Dynamics Of Wave-Current Boundary Layers Over Very Rough Boundaries, Marion Bandet-Chavanne

Link Foundation Ocean Engineering and Instrumentation Fellowship Reports

In this study, acoustic profiling techniques are used to resolve the two-dimensional spatial structures of the oscillating boundary layer in a phase-averaged sense over a wave orbital amplitude. The principal objective of this work is to examine the spatial variability of turbulent properties over irregular roughness. Field observations are used to investigate the interaction between bottom roughness, flow structure and turbulent properties within the near-bed flow. The overall focus of the research is to relate wave energy dissipation or friction factor estimates to physical roughness elements and understand the dynamics of such processes in the near-bed flow.

Semi-Autonomous Control Of Autonomous Underwater Vehicles, Stephen C. Martin

Link Foundation Ocean Engineering and Instrumentation Fellowship Reports

The goal of my graduate research is to address two engineering science problems whose solution will enable Autonomous Underwater Vehicles (AUVs) to routinely perform semi-autonomous missions presently considered impractical or infeasible. I am pursuing this research under the direction of Professor Whitcomb in the Dynamical Systems and Controls Laboratory at Johns Hopkins University, and in collaboration with the faculty of the Deep Submergence Laboratory of the Woods Hole Oceanographic Institution (WHOI).

In the last decade AUVs have begun to complement Human Occupied Vehicles (HOVs) and Remotely Operated Vehicles (ROVs) as effective platforms for oceanographic exploration. HOVs and ROVs are highly …