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wake characteristics

CFD Simulations for Sensitivity Analysis of Different Parameters to the Wake Characteristics of Tidal Turbine

CFD Simulations for Sensitivity Analysis of Different Parameters to the Wake Characteristics of Tidal Turbine

... the wake characteristics of Momentum Reversal Lift (MRL) turbine using a new computational fluid dynamics (CFD) based Immersed Body Force (IBF) ...flow characteristics and the computa- tional cost of ...

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Wake characteristics of single and tandem emergent cylinders in shallow open channel flow

Wake characteristics of single and tandem emergent cylinders in shallow open channel flow

... the wake region of downstream cylinder will shift towards upstream and the Reynolds shear stress contours elongate in spanwise direction with the increase in the gap ...

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Experimental evaluation of the wake characteristics of cross flow turbine arrays

Experimental evaluation of the wake characteristics of cross flow turbine arrays

... characteristics are mainly related to the geometry of the MRL turbine. The wake dissipates along the vertical direction up to z/D=1.5, being this the maximum expansion on the vertical at x/D=3 on the ...

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Experimental and CFD analysis of the wake characteristics of tidal turbines

Experimental and CFD analysis of the wake characteristics of tidal turbines

... Since both the drag and lift exert forces, both of these can be used to extract energy from the fluid flow. Of these, lift has been the subject of considerably more attention since it is the basis of winged flight and ...

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Performance and wake characteristics of a tidal turbine under yaw

Performance and wake characteristics of a tidal turbine under yaw

... associated wake behavior caused by a tidal turbine operating in a yawed inflow ...addition, wake propagation was studied up to a downstream distance of ten rotor radius, and skewness in the wake , ...

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Near-wake characteristics of a model horizontal axis tidal stream turbine

Near-wake characteristics of a model horizontal axis tidal stream turbine

... faster wake recovery and that after 5D downstream the deficit is almost ...the wake remained higher than upstream ...near wake of different structures: a wind turbine, a circular cylinder and prisms ...

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Wake characteristics of large-scale wind turbines

Wake characteristics of large-scale wind turbines

... the wake vortices generated by these large wind turbines may affect passing-by flying ...near wake flow was captured in the CFD study and the flaps add more complexity to the wake ...turbine ...

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Experimental study of wake characteristics in tidal turbine arrays

Experimental study of wake characteristics in tidal turbine arrays

... structure wake visualised by the PIV measurements which led to reduced velocity deficit on the lower part of the wake for the closely spaced arrays, whereas wider spacing saw increased velocity deficits ...

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Comparative Study Of Velocity Deficit Calculation Methods For A Wind Farm In Vietnam

Comparative Study Of Velocity Deficit Calculation Methods For A Wind Farm In Vietnam

... [4]). Wake is characterized by a large fluctuation of the wind speed and ...of wake into wind turbines causes decrease of power generation and increase of fatigue load on wind turbines (The wind farm output ...

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Analysis of control-oriented wake modeling tools  using lidar field results

Analysis of control-oriented wake modeling tools using lidar field results

... the wake of a turbine in normal operating condi- tions and yaw-misaligned conditions with control-oriented ...The wake models used in the com- parison included the Jensen model, the multi-zone model, and ...

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Comparison of a coupled near- and far-wake model with a free-wake vortex code

Comparison of a coupled near- and far-wake model with a free-wake vortex code

... To distinguish the effects of shed and trailed vorticity, the following comparisons include a BEM computation with a disabled shed vorticity model. The aerodynamic work during out-of-plane motion according to the first ...

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Three-dimensional structure of wind turbine wakes as measured by scanning lidar

Three-dimensional structure of wind turbine wakes as measured by scanning lidar

... wind characteristics above the heights of most traditional meteorological towers, and they can be deployed and moved rather easily, allow- ing measurements at several different ...Many wake validation ...

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An investigation of the near-wake flow structure of a cylinder with guiding plates

An investigation of the near-wake flow structure of a cylinder with guiding plates

... The effects of guiding plates and their angular positions on the near-wake flow structure have been investigated experimentally and on the hydrodynamic coefficients have been predicted numerically. The results ...

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Aerodynamics of gliding flight in common swifts

Aerodynamics of gliding flight in common swifts

... the wake shed from a gliding bird (Spedding et ...simple wake consisting mainly of two wingtip ...the wake flow behind a common swift (Apus apus ...

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The Wake of Crises and Devaluations

The Wake of Crises and Devaluations

... The preceding discussion has suggested a “representative time profile” for the recovery process in the wake of currency and, to a lesser extent, banking crises. This “representative time profile” suggests growth ...

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Wake up Radios for Wireless Sensor Networks

Wake up Radios for Wireless Sensor Networks

... the wake-up receivers with the sensor node and with the network for a simple event driven application is shown in Fig 3 based on a target detection ...based wake-up scheme enables pointto-point ...the ...

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Estimating the wake deflection downstream of a wind turbine in different atmospheric stabilities: an LES study

Estimating the wake deflection downstream of a wind turbine in different atmospheric stabilities: an LES study

... unfavorable wake situations is ...minimize wake losses of downwind turbines by either reducing the induction (Corten and Schaak, 2003) or by an intentional yaw angle of the turbine to the wind direc- tion ...

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Development of a questionnaire specifically for patients with Ileal Orthotopic Neobladder (IONB)

Development of a questionnaire specifically for patients with Ileal Orthotopic Neobladder (IONB)

... Preliminary exploratory PCA applied to the 33 items of the IONB-QoL questionnaire extracted 5 (varimax-rotated) factors explaining as much as 76.918% of the overall variance. Four of the factors were related to highly ...

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Migration of Nucleocapsids in Vesicular Stomatitis Virus-Infected Cells Is Dependent on both Microtubules and Actin Filaments

Migration of Nucleocapsids in Vesicular Stomatitis Virus-Infected Cells Is Dependent on both Microtubules and Actin Filaments

... Lylesa Department of Biochemistrya and Department of Microbiology and Immunology,b Wake Forest School of Medicine, Winston-Salem, North Carolina, USA; Department of Physics, Wake Forest [r] ...

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Pathophysiology and pathogenesis of circadian rhythm sleep disorders

Pathophysiology and pathogenesis of circadian rhythm sleep disorders

... drive, interact with each other and regulate the sleep- wake cycle [7]. The sleep-wake cycle is controlled by sleep homeostasis. The desire to sleep increases gradu- ally with extended wakefulness and ...

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