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wave induced hydrodynamic forces

Fluid loading and hydro-elastic response of towed pipelines

Fluid loading and hydro-elastic response of towed pipelines

... has a significant structural nonlinearity compounded by the quadratic nonlinearity of the hydrodynamic drag force and the unusual nature of wave-induced fluid loading. This is further complicated by ...

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Wave induced forces on the giant kelp Macrocystis pyrifera (Agardh): field test of a computational model

Wave induced forces on the giant kelp Macrocystis pyrifera (Agardh): field test of a computational model

... The possibility that the entanglements of stipes can contribute to breakage suggests that kelp species with solitary fronds may have a relatively greater chance of surviving wave forces. For instance, the ...

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Why the urchin lost its spines: hydrodynamic forces and survivorship in three echinoids

Why the urchin lost its spines: hydrodynamic forces and survivorship in three echinoids

... to hydrodynamic forces, nor that it occurred without ancillary ...the hydrodynamic story. Much of the ability of C. atratus to resist wave-induced forces is due to its unusually ...

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Influence of boundary conditions on the hydrodynamic forces of an oscillating sphere

Influence of boundary conditions on the hydrodynamic forces of an oscillating sphere

... power wave converters, and submerged floating ...the hydrodynamic response is usually subject to a linearization of the hydrodynamic force components considering: the inviscid flow, body subject only ...

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Using Half Pipes as Permeable Breakwater

Using Half Pipes as Permeable Breakwater

... investigated wave transmission and wave forces for vertical wave ...called wave screen or slit-type breakwater. Yu (1994) studied wave-induced oscillation in a ...

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Hydrodynamic Interaction of Ocean Wave Energy Point Absorbers

Hydrodynamic Interaction of Ocean Wave Energy Point Absorbers

... For a range of 15-30 s the graph reflects on the one hand the heave oscillation amplitude of the cone cylinder buoy undergoing regular wave excitation in laboratory measurements (cf. dashed blue curve). The ...

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Function of pectoral fins in rainbow trout: behavioral repertoire and hydrodynamic forces

Function of pectoral fins in rainbow trout: behavioral repertoire and hydrodynamic forces

... fin forces during deceleration of the body, we evaluated a long-standing yet previously untested functional hypothesis (Breder, 1926) regarding braking in plesiomorphic ray-finned ...

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Hydrodynamic Performance of a Novel Ocean Wave Energy Converter

Hydrodynamic Performance of a Novel Ocean Wave Energy Converter

... of wave height on the device operation; therefore, it is necessary to consider one wave period for various wave heights which has the most potential to ...The wave period varies between 2s and ...

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Performance Evaluation of an Optimized Floating Breakwater in Oblique  Waves with a Higher-Order Boundary Element Method

Performance Evaluation of an Optimized Floating Breakwater in Oblique Waves with a Higher-Order Boundary Element Method

... (hydrodynamic forces, body motions, wave elevations, and drift forces) are computed using a higher-order boundary element method ...3D wave effects were verified, and the body motions ...

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Determination of Hydrodynamic Forces in Rectangular Storage Tanks Under Seismic Action

Determination of Hydrodynamic Forces in Rectangular Storage Tanks Under Seismic Action

... Under earthquake loading, tank walls and liquid are subjected to horizontal acceleration. In the lower region of the tank, the liquid behaves like a mass that is rigidly connected to the tank walls. This mass is termed ...

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Propagation to the upper atmosphere of acoustic gravity waves from atmospheric fronts in the Moscow region

Propagation to the upper atmosphere of acoustic gravity waves from atmospheric fronts in the Moscow region

... acoustic-gravity wave propagation from variations in density and temperature on the Earth’s surface was studied mathematically in Kurdyaeva et ...the wave pattern, which however does not depend on the ...

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Hydrodynamic performance of floating photobioreactors driven by wave energy

Hydrodynamic performance of floating photobioreactors driven by wave energy

... regular wave that was produced was veri- fied to be stable using capacitance-type wave gauges that were arranged along the centerline of the wave flume; the absolute accuracy of these wave ...

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PREDICTION OF HYDRODYNAMIC COEFFICIENTS OF PERMEABLE PANELED BREAKWATER USING ARTIFICIAL NEURAL NETWORKS

PREDICTION OF HYDRODYNAMIC COEFFICIENTS OF PERMEABLE PANELED BREAKWATER USING ARTIFICIAL NEURAL NETWORKS

... (3).Two wave absorbers were built, one at each flume end to prevent reflection of waves from its both ends or reduce it to acceptable ...type wave generator was manufactured to produce regular waves with ...

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Electromagnetic Levitation of Nonmagnetic Disc

Electromagnetic Levitation of Nonmagnetic Disc

... only Lorentz force can lift them in gravitation field. Due to assumption that there are forces induced by magnetic hysteresis, permanent magnets, magnetic anisotropy and reluctivity change [1, 3, 11, 12, 16– ...

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Identification of hydrodynamic forces developed by flapping fins in a watercraft propulsion flow  field

Identification of hydrodynamic forces developed by flapping fins in a watercraft propulsion flow field

... Where ω is angular frequency and Y(ω) is a function of amplitude and phase spectrum of output. This equation is called Fourier Transform of y(t). This analog Fourier Transform will be needed to find data points of the ...

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Locomotor function of the dorsal fin in rainbow trout: kinematic patterns and hydrodynamic forces

Locomotor function of the dorsal fin in rainbow trout: kinematic patterns and hydrodynamic forces

... Behavioral observations and wake visualization Trout swam individually in the center of the working area (28·cm ⫻ 28·cm ⫻ 80·cm) of a temperature-controlled variable- speed freshwater flow tank (600·liters) under ...

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Transverse hydrodynamic forces on slender bodies in free surface flows at low speed

Transverse hydrodynamic forces on slender bodies in free surface flows at low speed

... TRANSVERSE HYDRODYNAMIC F O R C E S ON SLENDER BODIES I N F R E E S U R F A C E FLOWS A T LOW S P E E D T h e s i s by ' J o h n S e y m o u r L e t c h e r In P a r t i a l F u l f i l l m e n t of t[.] ...

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Liquid velocity field measurements during bubble formation and detachment at an orifice

Liquid velocity field measurements during bubble formation and detachment at an orifice

... During the initial stage, the bubble expands from a nearly hemispherical shape. At this stage the velocity field is radial and uniform (Figure 3). Thereafter, the bubble assumes an elongated shape (Figure 4). The ...

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Numerical Simulation of Interaction of a Current with a Circular Cylinder near a Rigid Bed

Numerical Simulation of Interaction of a Current with a Circular Cylinder near a Rigid Bed

... face roughness (~0.0002 m). Outlet flow boundaries are outflow and the rigid surface is simulated as a solid wall. To discretize the domain some movable smoothed particles are defined as fluid particles and some fixed ...

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Microalgae scatter off solid surfaces by hydrodynamic and contact forces

Microalgae scatter off solid surfaces by hydrodynamic and contact forces

... We have presented the first experimental study of the interaction of the model microalga Chlamydomonas rein- hardtii, commonly regarded as a prototypical puller micro- swimmer, with circular obstacles. The experiments ...

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