An Assessment of Naval Hydromechanics Science and Technology (2000) / Chapter Skim
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Appendix A: Research Facilities and Equipment for Naval Hydromechanics Technology
Appendix A: Research Facilities and Equipment for Naval Hydromechanics Technology
Pages 45-52
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Appendixes
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A pneumatic wave maker is at the deep end and an absorbing beach is at the shallow end. Two carriages are located in the high-speed basin, with maximum speeds of 16.5 m/s and 25.7 m/s.
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It has instruments for flow visualization, high-speed photography, and acoustic measurements, and is supported by rapid model prototyping using stereolithography. The Langley seawater tow tank (2,880 ft long, 24 ft wide, and 12 ft deep)
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The working medium is glycerine, allowing detailed measurements in turbulent boundary layers over a wide Reynolds number range as well as in a viscous sublayer structure. The axial flow research fan (open-circuit or in conjunction with a flow-through anechoic chamber)
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University of Michigan The University of Michigan towing tank is located in Ann Arbor, Michigan. It is a 6.7 m wide, 3.05 m deep, and 109.7 m long basin with a plunger wave maker at one end and a wave-absorbing beach at the other.
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From page 51... ...
In its present operating mode, the test section also has a separate acoustic tank containing an array of hydrophores for acoustic studies. The tunnel is equipped with a special vortex nozzle to measure the tensile strength of the water, a phase Doppler anemometer for bubble size measurements, a laser Doppler anemometer system, and a force balance.
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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 pilot probes for flow-field velocity and pressure measurements; and a towed PIV system.
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