wake dynamics
Wake Dynamics and Passive Flow Control of a Blunt Trailing Edge Profiled Body
... the wake of two-dimensional bluff bodies undergoes transition to three-dimensional flow and eventually turbulence, through the same sequence of transition as observed for circular cylinder (Williamson 1996), and ...
185
The wake dynamics and flight forces of the fruit fly Drosophila melanogaster
... approximately 0.085, which indicates that the flows are dominated by the beating of the wings and not by the background air velocity of the wind-tunnel. The average sectional wing velocity in Drosophila is 125 cm s −1 , ...
20
Simulating the aerodynamic performance and wake dynamics of a vertical-axis wind turbine
... the wake developed by the rotor requires a high-fidelity repre- sentation of the vortical structures within the flow field in which the turbine ...and wake dynamics of a Darrieus- type vertical-axis ...
30
Locomotor forces on a swimming fish: three dimensional vortex wake dynamics quantified using digital particle image velocimetry
... vortex wake dynamics during the fin-beat cycle ...the wake (as viewed in the parasagittal ...tail wake of swimming fishes (Lighthill, 1975; Triantafyllou and Triantafyllou, 1995), where ...
20
Function of the heterocercal tail in sharks: quantitative wake dynamics during steady horizontal swimming and vertical maneuvering
... the wake of two species of shark swimming in a flow ...of wake velocity and vorticity behind the heterocercal tail of leopard sharks (Triakis semifasciata) and bamboo sharks (Chiloscyllium punctatum) ...
10
Wake dynamics and rotor-fuselage aerodynamic interactions
... Freeman and Mineck (Ref. 19) measured steady pressures at various points on the surface of the ROBIN fuselage. In their experiments, the ROBIN body was fixed around the GRMS rotor system mounted in the Langley 14 × ...
19
Wake dynamics and fluid forces of turning maneuvers in sunfish
... the wake of the pectoral fins as sunfish executed turns; forces exerted during turning were compared with those generated by the immediately preceding fin beats during steady ...variables: wake momentum and ...
12
An overview of a Lagrangian method for analysis of animal wake dynamics
... fluid dynamics problems, the potential approaches for vortex boundary identification fall into one of two basic categories: Eulerian ...example, wake vortices have been previously identified by locating ...
8
The influence of blade curvature and helical blade twist on the performance of a vertical-axis wind turbine
... the wake that they produce can exacerbate dynamic stall and result in impulsive changes to the aerodynamic loading on the ...and wake dynamics of vertical-axis wind turbines with straight-bladed, ...
17
Fast swimming hydromedusae exploit velar kinematics to form an optimal vortex wake
... It is important to note the possibility of even further improved swimming performance in other aquatic jet- propelled swimmers. While in the present case vortex growth was extended until T* ⬇ 8, recent theoretical ...
9
An investigation of the near-wake flow structure of a cylinder with guiding plates
... (Dantec Dynamics A/S) measurements were obtained only in horizontal plane (x- y) which is parallel to the floor of the channel test section and 250 mm higher than it ...(Dantec Dynamics, FlowSense 2M) was ...
6
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
Comparison of a coupled near- and far-wake model with a free-wake vortex code
... the wake along their trailing edges and their tips (vorticity emission ...hybrid wake approach is followed, which refers to the mixed formulation used in the represen- tation of the ...of wake panels ...
19
Aerodynamics of gliding flight in common swifts
... processed wake images were used for calculating the circulation () of identifiable wake ...The wake of the gliding swift consists mainly of a pair of wingtip vortices and a pair of tail vortices ...
12
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 ...
26
Three-dimensional structure of wind turbine wakes as measured by scanning lidar
... the wake – is not aligned with the line of sight from the lidar (panel b), then the same wake will be measured as generally wider, since the retrieval of the wake width is now affected by the ...
16
The Effect of PV Panel Height on Dust Accumulation in a Two-row Solar Field
... Figure 4 Pressure contours for the case H/L = 0. Positive pressure: solid lines; negative pressure: dashed lines. Figure 5 shows the case where the panels are at a height H/L = 0.2. At this height, we notice two large ...
11
Analysis of pressure losses in the diffuser of a control valve
... A wake vortex arises under the cone, which distorts the velocity field in the ...the wake vortex arises with the flow ...the wake vortex on the increase of the pressure loss in the ...
8
Dynamic loads and wake prediction for large wind turbines based on free wake method
... Abstract: With large scale wind turbines, the issue of aerodynamic elastic response is even more significant on dynamic behaviour of the system. Unsteady free vortex wake method is proposed in this study to ...
13
A hydrodynamic analysis of fish swimming speed: wake structure and locomotor force in slow and fast labriform swimmers
... The production of large laterally oriented forces by both surfperch and sunfish at low swimming speeds and the maintenance of such large lateral forces in sunfish even at high speeds (Fig. 8) are remarkable and ...
15