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Wave Kinematics and Environmental Forces : Papers presented at a conference organized by the Society for Underwater Technology and held in London, U.K., March 24-25, 1993 - Society for Underwater Technology (SUT)

Wave Kinematics and Environmental Forces

Papers presented at a conference organized by the Society for Underwater Technology and held in London, U.K., March 24-25, 1993

Hardcover Published: 28th February 1993
ISBN: 9780792321842
Number Of Pages: 346

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In determining the response of offshore structures, it is of utmost importance to determine, in the most correct manner, all factors which contribute to the total force acting on these structures. Applying the Morison formula (Morison et. al. , 1950) to calculate forces on offshore slender structures, uncertainties related to the understanding of the wave climate, the hydrodynamic force coefficients and the kinematics of ocean waves represent the most important contributions to the uncertainties in the prediction of the total forces on these structures (Haver and Gudmestad, 1992). Traditional calculation of forces on offshore structures involves the use of regular waves with the following non-linearities inco1porated use of regular wave theories inco1porating higher order terms use of Morison equation having a nonlinear drag term inclusion of the effect of the free surface by integrating all contributions to total forces and moments from the sea floor to the free surface of the waves In order to describe the sea more realistically, the ocean surface is to be described as an irregular sea surface represented by its energy spectrum. The associated decomposition of the sea surface is given as a linear sum of linear waves. The total force is found by integrating the contribution from all components in the wave spectrum to the free surface. The kinematics of each component must therefore be determined.

Session 1
Technical Update and Field Data from the New Generation Microwave Directional Wave Radar
Wave Kinematics, Measurement, Modelling and Application
Nonlinear Wave Current Interactions
Effects of a Shear Current on Wind Induced Waves
Uncertainties in Prediction of Wave Kinematics in Irregular Waves
Wave Kinematics on Sheared Currents
Laboratory Wave Generation Correct to Second Order
Session 2
Comparison of Loads Predicted by a New Wave Theory with Measurements on the Tern Structure
Wave Loading Model Tests on a Gravity Base Structure
Added Hydrodynamic Loading Due to Sacrificial Anodes
The Vortex Induced Vibration of Marine Risers in Sheared and Critical Flows
Suppression of Vortex Shedding from Satellite Risers in a Current
Session 3
Review of Wave Breaking in Shallow Water
Three-Dimensional Breaking Wave Kinematics
Environmental Forces at the Coastline and Implications for Coastal Defence
Full Field Study of Post Breaking Vorticity
Multigrid Model of Wave-Current Interaction
Variation in Beach Profiles in Hell's Mouth Bay, Llyn Peninsula for the Period 1979-1981
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780792321842
ISBN-10: 0792321847
Series: ADVANCES IN UNDERWATER TECHNOLOGY, OCEAN SCIENCE, AND OFFSHORE ENGINEERING
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 346
Published: 28th February 1993
Publisher: Springer
Country of Publication: NL
Dimensions (cm): 23.4 x 15.6  x 2.0
Weight (kg): 1.5