Unified Lifting-line Theory of Fully Wetted Hydrofoils

Unsteady Force Measurements on Fully WeHed Hydrofoils in Heaving Motion

An experimental investigation is reported of the unsteady forces d ue to heaving motion of fully wetted hydrofoils of unity aspect ratio and also in two-dimensiona l flow. The tests covered a broad range of reduced frequency and determined the effects of variation in submergence depth, angle of attack, oscillation amplitude, and flow velocity. In genera l, the findings agree well with available...

Propeller blade stress estimates using lifting line theory

OPENPROP, an open-source computational tool for the design and analysis of propellers and horizontal-axis turbines, is extended to provide estimates of normal stresses in the blades for both onand off-design operating conditions. The numerical model is based on propeller lifting theory, and the present implementation of the code includes an analysis capability to estimate the off-design perform...

Hydrofoils and Hydrofoil Craft

At the present time several hundred hydrofoil craft are in service throughout the world. The upsurge in the use of these craft did not really begin until the late 1950s, although fascination with the idea of supporting small boats with underwater wings dates well back into the nineteenth century. About he turn of the century, hydrofoil flight was achieved, to be followed in a few years by Bell ...

Correction of Tee Lifting-line Theory for the Effect of the Chord

FPGA Fully Reconfigurable Lifting Kernel for Multimedia Processing

In this paper a fully reconfigurable lifting kernel specifically designed for multimedia processing on FPGA is addressed. In particular since nowadays services such as video-conferencing, HDTV and Internet browsing are actually of great concern due to new multimedia technologies, the proposed core can be successfully employed in many different environments. First some theoretical issues about t...