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All News and Pages Related to "PIV"

EFD Data: Towing Tank

Posted on October 28th, 2013

Towing Tank Ship propulsion/maneuvering/sea-keeping/environmental tests (CFD whole field, Tomographic-PIV) Flat plate; NACA0024

EFD Data: Flumes

Posted on October 28th, 2013

Flume (30m x 0.91m x 0.45m) Free surface instability (Free surface, 2D-PIV, Borescopic-PIV) Plunging wave breaking span-wise structures

Shallow Water Free-Surface Instability

Posted on October 28th, 2013

Experiment Unsteady free surface waves generated in a shallow water flume over a bump are investigated with different measurement systems. Conventional wave gauges and standard particle image velocimetry systems are used to determine the wave profiles and flow velocity distributions around the bump. An imaging technique is developed to measure the duration, displacement, and size […]

Impulsive Plunging Wave Breaking

Posted on October 28th, 2013

Experiment The plunging wave-breaking process for impulsive flow over a bump in a shallow water flume is described, which is relevant to ship hydrodynamics since it includes the effects of wave-body interactions and the wave breaking direction is opposite to the mean flow. Phase averaged measurements (relative to the time at which the maximum wave […]

5512 Captive Maneuvering

Posted on September 10th, 2013

Experiment Towing-tank experiments are performed for a surface combatant as it undergoes static and dynamic planar motion mechanism maneuvers in calm water. The data includes global forces/moment/motions and phase-averaged local flow-fields, and uncertainty assessment. The geometry is DTMB model 5512, a 1:46.6 scale, 3.048 m long, fiber reinforced Plexiglas hull. Model 5512 is a geosim […]

5512 Steady

Posted on September 10th, 2013

Experiment Results from towing tank experiments for David Taylor Model Basin model 5512 are presented for resistance, sinkage and trim, wave profile, and nominal wake tests and uncertainty assessment. Model 5512 is a 1:46.6 scale, 3.048 m long, fiber reinforced Plexiglas hull, which is a geosim of DTMB model 5415, a 1:24.8 scale 5.72 m model. […]

5512 Roll Decay

Posted on September 10th, 2013

Experiment Towing-tank experiments are performed for an advancing surface combatant in free roll decay motions. Results are presented for motions (surge, sway, heave, roll, pitch and yaw), forces (resistance, sway and heave), moments (pitch and yaw), phase-averaged velocities (U, V and W) for a measurement region near the bilge keel and free surface elevations.  The geometry of interest is DTMB […]

5512 Forward Speed Diffraction

Posted on September 10th, 2013

Experiment Results are presented from towing-tank tests of forces and moment, wave elevation, and phase-averaged nominal wake velocities and Reynolds stresses for a surface combatant advancing in regular head waves, but restrained from body motions, i.e., forward-speed diffraction problem. The geometry is DTMB model 5512, a 1:46.6 scale, 3.048 m long, fiber reinforced Plexiglas hull. […]

PhD Theses

Posted on August 7th, 2013

University of Iowa theses are available for loan to other institutions and libraries through Interlibrary Loan (ILL). The ILL email address is lib-ill@uiowa.edu. 2013 A. Hanaoka, “An Overset Grid Method Coupling an Orthogonal Curvilinear Grid Solver and a Cartesian Grid Solver,” May 2013. T. Michael, “Development and Validation of a Sharp Interface Cavitation Model,” May […]

Journal Articles (rigorous review)

Posted on March 16th, 2012

2015 He, W.; Castiglione, T.; Kandasamy, M.; and Stern, F., “Numerical analysis of the interference effects on resistance, sinkage and trim of a fast catamaran,” Journal of Marine Science and Technology, 20, 2, pp. 292-308, June 2015. Stern, F.; Wang, Z.; Yang, J.; Sadat-Hosseini, H.; Mousaviraad, M.; Bhushan, S.; Diez, M.; Yoon, S.H.; Wu, P.C.; […]