Vortex Formation
Characteristics of vortex formation and thrust performance in drag based paddling propulsion
... the vortex strength is an important parameter in the relationship between vortex formation and thrust ...tip vortex development and thrust ...stopping vortex shedding in efficient ...
9
Numerical Study of Mechanisms of the Vortex Formation in the Wake of Dual Flapping Foils
... The vortex formation of the wake of dual-flapping foils has been numerically studied using the immersed boundary ...von-Kármán vortex street, an interesting phenomenon, the deflection of the ...
9
Vortex formation and evolution in planet harboring disks under thermal relaxation
... The formation of vortices due to the BI was fi rst observed by Klahr & Bodenheimer ( 2003 ) ...baroclinic vortex ampli- fi ...baroclinic vortex ampli fi cation through the growth of existing ...
13
Vortex formation in unsteady flow over NACA 4412 and NACA 4424 airfoils
... of vortex formation on the aerodynamic performance of airfoils have served as motivation for many research ...and vortex shedding phenomena, and the effects of vortex formation on ...
7
Vortex formation by unstable oceanic jets
... that vortex detachment is correlated with the growth of long waves, while meander stabilization occurs when only the fundamental wave and its first harmonics (short waves) are ...
14
Numerical Modeling of the Vapour Vortex Formation in the Short Heat Pipes
... of vortex formation inside short heat pipes (HP’s) with profiled vapour channel in the Laval-liked nozzle form are ...vapour vortex of moist compressible vapour flow in the cooled part of vapour ...
17
Vortex formation with a snapping shrimp claw
... the vortex formation counterbalances the deceleration of the plunger such that the shear layers feed the vortex with a near constant circulation ...the vortex ring detaches from the wall at a ...
11
Characteristics of Three dimensional Vortex Formation and Propulsive Performance in Flapping Locomotion
... In order to better understand the aerodynamics of flying animals, it is also important to find the difference between fixed wings of airplanes and flapping wings of flying animals. First of all, flow around the airplane wing is ...
157
Vortex formation and prevention.
... The flow f N K I W K M established in the. In* chamber % these flaw fedttiMUl « O M i l t i 4 ' ©f a slight clockwise swirl in the right hell’ of'' the chimber end A relatively calm water au.trface in' the left half of ...
113
Vortex formation and recirculation zones in left anterior descending artery stenoses: computational fluid dynamics analysis
... thrombus formation following plaque ...and vortex formation in reconstructed arterial models associated with ST elevation myocardial infraction (STEMI) or stable coronary stenosis (SCS) in the left ...
26
Vortex formation and dynamics of defects in active nematic shells
... is transient and reduces to the four-defect state due to coalescence of oppositely charged defects. In figure 6(d) the times to the first annihilation event for this metastable configuration and for n pair = 2 with random ...
13
Non-linear stability of vortex formation in swarms of interacting particles
... so that the constrained minimum-energy state of the swarm corresponds to vortex-like rotation with the velocity vector of each particle normal to its position vector and the vector λ such that . The Lagrange ...
9
Leading-Edge-Vortex Formation on Finite Wings in Unsteady Flow.
... prediction is slightly delayed. CFD observation captures a few chordwise shear waves (Kelvin- Helmholtz wave) behind the leading edge while UVLM prediction shows a convection of LEV sheet with small crease at the edge of ...
127
Vortex formation and drag on low aspect ratio, normal flat plates
... Coutanceau (1992), who performed similar experiments with low AR circular cylinders with one end free. However, the mechanism responsible for keeping the LEVs attached to the plate near the tip was not that hypothesized ...
204
A Dynamical Systems Analysis of Vortex Pinch-Off
... efficient vortex formation has also been found in the swimming behavior during cruise of several jellyfish species that are known to be ‘cruising predators’ ...optimal vortex formation in ...
209
Swirling flow of a perfect liquid in modelling washout of tank bottom sediments
... localised vortex-like flows of real liquid are interesting with regards to washout of the sediment beds in tanks which are used in the technological process of oil ...the vortex structure on the ...
8
Formation of Necklace Type Vortex System Upstream of a Gate Valve in Pipe Flow
... main vortex was clarified by the contour of time-averaged vorticity, as shown in Figure ...the vortex formation could not be confirmed as well as the pass-lines ...
8
Unsteady fluid mechanics of starting flow vortex generators with time dependent boundary conditions
... a vortex ring (Cantwell, 1986; see figure ...leading vortex makes a proportionally larger contribution to mass and momentum transport than an equivalent straight jet of fluid (Krueger and Gharib 2003; ...
186
Ocean jet instability: a model comparison
... The large-scale, wind-driven currents of the North Atlantic ocean, between 20 o N and 60 o N , can be idealized on part of their courses as thin, zonal 1 jets. Among them are the Gulf-Stream (GS) in the western basin, ...
12
The role of vortex ring formation and pressure drop on dynamics of the left ventricle during diastole
... the vortex ring is about to pinch off, regardless of the size of the valve and the pressure ...versus formation time, it can be observed that the force is maximal in a range of formation times ...
143