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Keywords: yeung
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Proceedings Papers

Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-291
... ABSTRACT An eigenfunction expansion method (Yeung, 1981) is used to investigate the Helmholtz and higher-order symmetric resonances of the moonpool between two heaving rectangular oating bodies. It is shown that at Helmholtz resonances the hydrodynamic coefficients have distinctively bounded...
Proceedings Papers

Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-024
... of various types of bilge keel shapes in mitigating roll motions. Vugts (1968) was the first to calculate the hydrodynamic coefficients for sharply edged sections in roll motions and observe the importance of the viscous effect. Yeung et al. (1998) applied the Free-Surface Random Vortex Method (FSRVM, Yeung...
Proceedings Papers

Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-277
... calibrations with laboratory or field measurements. Nevertheless, these tests are time consuming and cost intensive, and results are case dependent. velocity field roll motion rectangular barge vortex yeung trajectory turbulent kinetic energy experiment upstream oil & gas barge wave gauge...
Proceedings Papers

Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-275
... ABSTRACT Application of the Free-Surface Random-Vortex Method (FSRVM, Yeung, 2002) is made to investigate two types of forced motion problems with the effects of viscosity considered. A submerged body undergoing periodic swaying oscillation is considered and compared with results...
Proceedings Papers

Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-032
... for the prediction of separated flows about fully submerged or floating 2D bodies (with or without bilge keels), Chorin [1973], Sarpkaya [1986], Sarpkaya [1994], Yeung and Ananthakrishnan [1992], Yeung et al. [1996], Korpus and Falzarano [1997], Gentaz et al. [1997], Yeung and Cermelli [1998], Muzaferija and Peric...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-264
... coefficient fsrvm frequency engrg splitter plate amplitude equation prediction drag coefficient upstream oil & gas fluid mech rectangular cylinder reduction bilge keel yeung subsea system fpso Fluid Dynamics of Finned Bodies From VIV to FPSO Ronald W. Yeung University of California...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-269
..., 1994), with recent extensions to include the effects of free-body motion (Yeung & Liao, 1999). Frequencydomain response in waves is obtained by simulating this 3DOF system in the time domain over a range of frequency. Comparison with experiments is seen to be rather satisfactory. Both experiments...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-292
... (Yeung & Vaidhyanathan, 1994). Inviscid results that are of interest for comparison or validation purposes can be recovered by "shutting-off" viscosity in this tbrmulation. This nonlinear model is first applied to study the transient response of a body with initial displacements for pure heave...
Proceedings Papers

Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-260
... Cylinders R. W. Yeung, S. -W. Liao and D. Roddier University of California at Berkeley Berkeley, CA, USA Abstract Fluid viscosity is known to influence hydrodynamic forces on an oscillating body when its motion amplitude is large and its shape is bluff. An experimental program is developed to measure...

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