Wake structure
Numerical Simulation of the Torus Wake Structure
... the wake structure of disks and non-circular ...the wake flow of the rings occurs when the outer diameter is about 50% larger than the inner ...the wake of the bluff rings both experimentally ...
138
Wake structure and kinematics in two insectivorous bats
... wing structure, aerodynamics, and flight ...similar wake structure over the wingbeat ...and wake dynamics [24, ...and wake architecture [24, ...
31
The relationship between near-wake structure and heat transfer for an oscillating circular cylinder in cross-flow
... in wake mode for some ...particular wake mode causes the wake to switch out of that mode and in to a different ...between wake structure and cylinder temperature may not always lead to ...
262
Wake structure and wing kinematics: the flight of the lesser dog faced fruit bat, Cynopterus brachyotis
... their wake structure: two relatively small nectar-feeding, phyllostomid, echolocating bats, Glossophaga soricina (10g) and Leptonycteris ...the wake structures typical of bat flight, and even less ...
14
Wake structure and kinematics in the vortex ring state
... the wake, charac- terized by Green et ...the wake in the VRS, the structure of the wake is seen to switch between tubular and toroidal ...tubular wake structure for a short time, ...
19
Predicting the wake structure of the HART II rotor using the vorticity transport model
... the wake structure at a significantly later age ...this structure evolves to form a coherent vortex, but some small geometric anomalies, particularly in the shape of the evolving vortex sheet, are ...
17
Comparative jet wake structure and swimming performance of salps
... jet wake structure does not fall neatly into the two jet mode categories but rather falls along a continuum from isolated vortex ring to vortex rings with varying degrees of a trailing ...jet wake ...
9
Effects of Inflow Conditions on Wind Turbine Performance and near Wake Structure
... One of the major problems with wind tunnel studies on small scale turbines is the significantly lower Reynolds number as compared to full scale. Most studies have models with diameter in the order of 100 - 300 mm, even ...
25
Three dimensional kinematics and wake structure of the pectoral fins during locomotion in leopard sharks Triakis semifasciata
... the wake sometimes did not show the middle of the pectoral fin, we approximated the vortex ring radius by measuring the radius of the vortex core when the shed vortex had moved approximately one radius downstream ...
18
A hydrodynamic analysis of fish swimming speed: wake structure and locomotor force in slow and fast labriform swimmers
... A digital particle image velocimetry (DPIV) system was employed that allowed visualization of water flow in planar transections of the pectoral fin wake following the methods that we have used previously (e.g. ...
15
Three-dimensional structure of wind turbine wakes as measured by scanning lidar
... of wake structure occurs because of the wind veer, the clockwise change of wind direction with height that often occurs in stable conditions, like those of 23 and 26 August ...the wake centerlines, ...
16
Modelling the aerodynamics of vertical-axis wind turbines in unsteady wind conditions
... Figure 4 shows the flow field surrounding the straight-bladed vertical-axis wind turbine in steady wind conditions. Figure 4(a) depicts the vorticity distribution on a vertical plane through the centre of the rotor. This ...
17
Interaction of an Eulerian flue gas plume with wind turbines
... the wake developed by the wind turbine, it is essential to predict accurately the formation and evolution of the wake ...VTM-computed structure of the wake developed by a two-bladed HAWT rotor ...
13
Effect Of Prandtl Number On Heat Transfer In Flow Past A Heated Cylinder
... associated wake structure have a major role in determining the heat transferred from the cylinder ...the wake structure developed behind the cylinder since it is a measure of the two boundary ...
6
An investigation of the near-wake flow structure of a cylinder with guiding plates
... near-wake structure of the cylinder using guiding plates, and then, to interpret the foregoing physics of the near-wake in terms of patterns of time-averaged vorticity and streamlines, time- averaged ...
6
Influence of blade aerodynamic model on the prediction of helicopter high-frequency airloads
... and wake structure, obtained using the VTM in conjunction with each of the blade aerodynamic models, have been compared against data gathered during the HART II experimental ...
19
The Wake of a Kestrel (Falco Tinnunculus) in Flapping Flight
... Wing beat kinematics and wake structure The circulation measurements reported above support the notion that the wake of a flapping kestrel is composed of a continuous vortex pair of cons[r] ...
20
Analysis of control-oriented wake modeling tools using lidar field results
... First, the lidar data collected in the field campaign were an- alyzed based on atmospheric conditions. In particular, tur- bulence intensity was examined to understand the behavior of each model under varying turbulence ...
13
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 ...
19
Comparative Study Of Velocity Deficit Calculation Methods For A Wind Farm In Vietnam
... This paper presents models for calculating the wind velocity deficit in Wake by WAsP and Windfarm softwares and the experimental results of wind tunnel about wake effects at Mie University, Japan. The ...
13