tip vortex
Mean flow and turbulence measurements in the near field of a fighter aircraft wing-tip vortex at high Reynolds number and transonic flow conditions
... in tip vortex studies using rectangular half- wings of symmetrical ...wing-tip vortex, the wake of the main body of the missile (similar to an ogive cylinder), and the additional vortical flow ...
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An improved tip vortex cavitation model for propeller-rudder interaction
... the tip vortex cavitation phenomenon has been the focal point by some researchers using CFD methods and commercial codes by creating mesh refinement regions around a propeller’s tip area for ...
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An empirical approach for propeller tip vortex cavitation noise
... Tip vortex cavitation has a major effect on propeller radiated ...the tip triggers the noise level ...technique, tip loading factor has been calculated by using the circulation (loading) value ...
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Computational Prediction of Tip-Vortex of a Swept Wing
... wingtip vortex core and tangential velocity at one chord downstream of the trailing edge is ...wing tip vortex by applying suction on the wing ...
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Tracking a Tip Vortex with Adaptive Vorticity Confinement and Hybrid RANS LES
... inside vortex cores which is a typical deficiency of common RANS ...wing tip vortex flow are validated in terms of vortex veloc- ity profiles using the results of a wind tunnel experiment ...
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Formation and near-field dynamics of a wing tip vortex
... 161 Effects of Boundary Layer and Tip Geometry Vortex lines of opposite sign annihilate each other Vortex lines coming from the wing surface boundary layer Rectangular Tip Case Vortex li[r] ...
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Hydrodynamic performance evaluation of a tidal turbine with leading-edge tubercles
... including tip vortex cavitation and cloud cavitation at the back-side and face-side of the blade, as shown in Figure 11, which depends on the ...the tip vortex cavitation first appeared and ...
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A Numerical Prediction of Tip Vortices from Tandem Propellers in the Counter Rotating Type Tidal Stream Power Unit
... the tip vortex tubes shedding to predict the load of the ...the tip vortex shedding using the CFD method for the conventional single propeller and counter-rotating type tandem propellers and ...
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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 ...affects tip vortex development and thrust ...stopping vortex shedding in ...
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On the formation of three-dimensional flows over finite-aspect-ratio wings under tip effects
... the tip vortex exhibits noticeable undulation in the streamwise direction due to its strong interaction with the unsteady shedding ...unsteady tip vortex region from the yellow and purple ...
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Low-Order Modeling of Wing-Tip Vortices Using an Augmented Vortex Lattice Method.
... leading-edge vortex of delta wings, the wing-tip vortex is characterized by a separated flow structure that is not included in conventional vortex lattice method (VLM) ...the tip, and ...
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Free surface interaction of a ‘T foil’ hydrofoil
... in tip ventilation - where a ventilation pathway is believed to form between the free surface and hydrofoil through the core of the hydrofoil trailing tip vortex - are largely anecdotal – being based ...
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Vortex formation and drag on low aspect ratio, normal flat plates
... the tip was not that hypothesized by Ellington et ...the tip, which slows the accumulation of circulation within the LEV and thus keeps it attached ...(from tip to root) was the opposite of that ...
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Computational fluid dynamic investigations of propeller cavitation in the presence of a rudder
... propeller’s tip region for capturing tip vortex cavitation in a propeller slipstream, in a recent international propeller symposium, SMP’17 (Yilmaz et ...the tip vortex ...cavitating ...
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Mathematical modeling and simulation of aquatic and aerial animal locomotion
... vortices, required to reinstate the original time-varying normal velocity on the bound sheet. We will provide an extensive description for the implementation of these methods and will include some very interesting ...
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Humpback whale inspired design for tidal turbine blades
... the vortex activity on the foil surfaces in ...the tip of the hydrofoil, the secret of why the leading-edge tubercles always perform better ...the tip vortex by stopping it from spreading on ...
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Computational study of decaying annular vortex flow using the r ε/k-ε turbulence model
... the vortex flow field as predicted by the standard k e model and R e /k e against experimental ...the vortex breakdown region where the measurements plotted in ...the vortex strength, as it is shown ...
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Entrapping of a vortex pair interacting with a fixed point vortex revisited I Point vortices
... A significant improvement over the simplest point-vortex model towards increasing real- ism is the model utilizing finite area vortex patches. Since the model allows for vorticity redistribution through the ...
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Coaxial superposition of Bessel beams by discretized spiral axicons
... Experimentally, Eq. 1 could also be introduced on a spatial light modulator (SLM) [2, 22]. Next to the possibil- ity of the precise adjustment of the radial and azimuthal parameters, the generated wavefield is limited by ...
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Online Full Text
... A major objective of this study is to make available the stalling characteristics of VAWT blades at two different tip speed ratios through visualisations. The velocity flow field acquired in the PIV campaign does ...
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