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Transient wave

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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6364-MS
... investigation of wave-fluid particle kinematics just prior to breaking using laser Doppler anemometry is presented. An extreme transient wave, similar to those found in hurricane Camille, and an "equivalent" regular Stokes wave often used for design purposes were generated, and their kinematics measured. Due...
Proceedings Papers

Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-242
...Creation and Annihilation of Extremely Steep Transient Wave Igor Ten, Hiroshi Tomita Ocean and Ice Engineering Department, National Maritime Research Institute Mitaka, Tokyo, Japan ABSTRACT Freak waves in the ocean are recently drawing much attention as a natural disaster to ocean structures...
Journal Articles
Int. J. Offshore Polar Eng. 19 (03).
Paper Number: ISOPE-09-19-3-189
Published: 01 September 2009
...Guanghua He; Masashi Kashiwagi The vibration of a vertical plate induced by the impact of a pulse-type wave and resultant generation of nonlinear transient waves are simulated using the full-nonlinear boundary-element method. A hybrid scheme coupling the numerical damping beach with the piston-like...
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Proceedings Papers

Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-258
... ABSTRACT This paper describes a new procedure to synthesize nonlinear transient waves in random seas for simulating extreme wave events in a numerical or physical wave tank. Modern nonlinear programming methods are applied to generate a two-dimensional wave train which is characterized...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-280
... ABSTRACT: Nonlinear transient waves are numerically calculated in time domain and validated by laboratory data. The simulation is based on potential flow theory and performed in a two dimensional numerical wave tank with piston-type wave generator. A finite element method developed by Wu...
Journal Articles
J Ship Res 25 (02): 141–145.
Paper Number: SNAME-JSR-1981-25-2-141
Published: 01 June 1981
...Robert T. Hudspeth; Larry S. Siotta Wave power extracted from the transient motion of a periodically restrained-released heaving circular cylinder proposed by Falnes and Budal is examined under the limitations of linear wave theory excitation. Numerical estimates for the normalized radiated wave...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1230
... Abstract In the previous study, we have investigated the transient dynamic behaviors of a SPAR-type FOWT under a particular accidental scenario when the freak wave is followed by the sudden failure of one mooring line. In the present work, we further investigate the influence of the sequence...
Proceedings Papers

Paper presented at the The Fourteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 22–25, 2020
Paper Number: ISOPE-P-20-170
... that in case 4 (in which the mooring line is fractured), and the freak wave hardly affect the mean position if the simulated time is long enough so that the transient influence is faded. Moreover, it can be found that during the freak crest passes through the Spar buoy, the difference of surge between case 4...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194888-MS
... applications. For example, it can be used to model the interaction of electromagnetic waves with travelling Bragg mirrors produced by temperature or pressure changes in optical fibers, which is the basis of fiber-based distributed fiber sensing; the scattering of acoustic waves by transient disturbances...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25793-MS
... motions on the motion of a hollow cylinder in irregular sea waves. The results are compared with the traditional approach in current practice. The time domain diffraction simulation is coupled with multiphase CFD simulation of subsea equipment and structures in waves. A transient CFD model with rigid...
Journal Articles
Journal: SPE Journal
SPE J. 18 (02): 355–365.
Paper Number: SPE-160926-PA
Published: 28 December 2012
... and the amplitude of the reflected wave from the closed outlet is reduced). For the subsequent analysis, we will only focus on the analysis of the inlet pressure history. Fig. 7 Effect of friction in the presence of partial blockage on inlet pressure history. Fig. 8 Transient profiles for viscous...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-0583
... source signatures: a transient square wave and a transient pseudo-random binary sequence (PRBS). ziolkowski spectrum square wave data electric field square-wave transient csem data csem data peon gas discovery earth response sequence source signal prb wright frequency reservoir...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-0534
... Summary We describe a method to remove the air wave from shallow marine transient EM data. At a long enough offset the air wave dominates the measurement and the response of the earth is negligible. Thus a long-offset measurement can be used to estimate the shape of the air wave which...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-249
... ABSTRACT Transient design waves in random sea are optimized by a Sequential Quadratic Programming method. The procedure is based on the linear wave superposition model which allows an exact representation of the wave train in frequency domain. For a given design variance spectrum, the desired...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-2321
... of dispersion equation of cylindrical Love waves as well radius r 1 ? consistently tends to the dispersion equation in half-space with horizontally double-layered elastic media, and cut-off frequency tends to zero. The transient full waveform is also calculated and illustrated, which shows realizing direct...
Proceedings Papers

Paper presented at the The Sixth International Offshore and Polar Engineering Conference, May 26–31, 1996
Paper Number: ISOPE-I-96-037
... with and without (calm sea condition) wave load acting on the tower. Since earthquake is a transient phenomenon which may occur at any oscillating state of the tower, the initial condition (initiation of Earthquake) becomes important in the response analysis. Because of this reason, the time domain analysis...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-173465-STU
... and dissemination of waves from the source outwards, towards the water boundary. Described like this, a pressure transient (or pulse) is a wave phenomenon [disturbance travel] that accompanies a rapid change of the velocity of the fluid in the medium. The travel of these transients in a reservoir invariably...
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<span class="search-highlight">Wave</span> representation of pressure <span class="search-highlight">transient</span> behaviour
Published: 31 July 2010
Figure 2.2 Wave representation of pressure transient behaviour More
Proceedings Papers

Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-352
... ABSTRACT The solution derived in the Lagrangian description was applied to predict the propagation and transformation of transient water waves. Moreover, an analytical solution to the problem of the propagation and transformation of transient water waves was also achieved in the Eulerian...

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