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Near-Boom Oil-Slick Instability Criterion in Viscous Flows and the Influence of Free-Surface Boundary Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Booms are often used to contain oil spills prior to various oil removal techniques. Under certain conditions, the oil droplets can leave the oil slick and enter the water. A simple balance ...
The Calculation of the Instability Criterion for a Uniform Viscous Flow Past an Oil Boom
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An important problem in oil spill containment by booms is the instability of the oil-water interface at the boom. This instability, which represents the conditions under which oil can escape ...
Numerical Simulation of Nonlinear Wave Diffraction by a Vertical Cylinder
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A three-dimensional time domain approach is used to study nonlinear wave diffraction by a fixed, vertical circular-cylinder that extends to the sea floor. In this approach, the development of ...
On the Interaction of Waves With Intake/Discharge Flows Originating From a Freely-Floating Body
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A linear theory is developed to obtain the motions of a two-dimensional, freely floating body (from which steady intake/discharge flows originate) that encounters incoming waves. The boundary-value ...
Nonlinear Diffraction of Waves by a Submerged Shelf in Shallow Water
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The diffraction of water waves by submerged obstacles in shallow water generally requires the use of a nonlinear theory since both dispersive and nonlinear effects are important. In this work, ...
Interaction of Incoming Waves With a Steady Intake-Pipe Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A linear ray theory is developed to study the interaction of water waves with a steady intake-pipe flow in deep water. The wave-current interaction model is based on the assumption that the ...
Linear and Nonlinear Wave Models Based on Hamilton’s Principle and Stream-Function Theory: CMSE and IGN
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recently, two wave models based on the stream-function theory have been derived from Hamilton’s principle for gravity waves. One is the irrotational Green–Naghdi (IGN) equation and the other is ...
A Strongly-Nonlinear Model for Water Waves in Water of Variable Depth—The Irrotational Green-Naghdi Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recently, the authors have derived a new approximate model for the nonlinear water waves, the Irrotational Green-Naghdi (IGN) model. In this paper, we first derive the IGN equations applicable ...
Finite-Element Computation of Wave-Structure Interaction between Steep Stokes Waves and Vertical Cylinders
Publisher: American Society of Civil Engineers
Abstract: The diffraction of highly nonlinear Stokes waves by vertical cylinders of circular cross section is numerically simulated in the time domain. A finite-element method, based on Hamilton’s principle, is used to discretize ...