The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
An Assessment of Naval Hydromechanics Science and Technology
a free surface or fully flooded. Instrumentation includes an updated LDV system for in-depth flow field measurement and correlation with theory for both propellers and foil sections. The latest addition is a special test section for waterjet pump performance analysis.
University of Iowa
The Iowa Institute of Hydraulics Research at the University of Iowa in Iowa City, Iowa, has a towing tank 3 m wide, 3 m deep, and 100 m long. The drive carriage and model trailer are cable-driven, with a speed range of 0 to 3 m/s. The drive carriage houses equipment for conventional analog-digital data acquisition such as dynamometers, wave gauges, and multihole pitot probes. There is also instrumentation on board for particle image velocimetry (PIV) data acquisition including a PIV vector processor and hardware for automated movement of traverses for equipment (sensor) positioning. The instrumentation includes a four-channel dynamometer; linear potentiometers for model attitude measurement; capacitance, acoustic, and servo-mechanism probes for wave elevation measurements; differential pressure transducers and multihole pitot probes for flow-field velocity and pressure measurements; and a towed PIV system. The wave maker is capable of generating regular and irregular waves, with wavelengths of 0.25 to 6 m and amplitudes of 0 to 15 cm.