[PDF] Top 20 Coherent structures in the breakdown bubble of a vortex flow

Coherent structures in the breakdown bubble of a vortex flow

... base flow and develops spatially and ...the flow to the inflow perturbation is dramatically different with the most unstable mode over the period ...the breakdown bubble, while at low ... See full document

17

Lagrangian coherent structures of accumulating inertial particles in vortex flow on a disk

... A MATLAB code is written to solve the equations of motion of the inertial and gas particles and which immediately calculates the corresponding FTLE fields at that time step. The code is tested for a simple case and is ... See full document

67

Wake structure and kinematics in the vortex ring state

... the flow will cause the strength and distribution of the bound circulation on the blades to vary in ...persisting, coherent rings that arise in the VRS wake from one moment to another and will also affect ... See full document

19

On Coherent Structures of Turbulent Open-channel Flow Above a Rough Bed

... larger coherent structures which could be called hairpin vortex [11, ...this vortex is shown [17]. As it can be seen, this vortex has two legs which lies on the bed and among these legs ... See full document

10

Study of vortex behavior in unsteady flow over NACA 0012 and NACA 0024 airfoils

... separation bubble in the case of NACA 0024 airfoil is shown in ...and vortex centered on point E2 is ready to be ...the vortex centered on point E3 separates itself from the separation ...the ... See full document

7

Coherent flow structures and spot formation induced by wall perturbations in a Blasius boundary layer

... fluid flow transition and turbulence generation (see Chapter ...of vortex structures with the generation of boundary layer turbulence ...organized structures formed by the roll-up of 3-D shear ... See full document

408

The Influence of Cavitation Structures on the Erosion of a Symmetrical Hydrofoil in a Cavitation Tunnel

... by bubble implosion near the solid surface of a ...[9]). Bubble implosion is a process that generates disturbances and shocks with high amplitudes of pressure in the position of a bubbles ... See full document

11

Turbulence and Cavitation Suppression by Quaternary Ammonium Salt Additives

... shear flow conditions and form transient shear-induced-structures that locally induce significant viscoelastic properties in the ...nozzle flow is discussed here using the schematic in ...the ... See full document

16

Instability, coherent structures and turbulent mixing in cross sheared flow in stratified environments

... turbulence flow experiences four stages as well, as shown in ...prominent flow patterns are the counter-propagating wave groups rather than the stationary primary eddy in the KH ...primary vortex ... See full document

249

CFD EVALUATION OF COUNTER-FLOWING WALL JET

... main flow is numerically examined using a three-dimensional, unsteady, Improved Delayed Detached Eddy ...main flow leads to oscillation of the location of the stagnation point and generates significant ... See full document

75

Physical principle dealing with development of vortices formed by DBD actuator

... of vortex train should be presented here on the example of one vortex ...The vortex is created immediately after the start of working ...The vortex is fed by the body force energy during the ... See full document

5

Decomposition methods in turbulence research

... of structures should be resolved in both domains. The structures of subgrid scales, if present, will produce the data noise, which could not be used for ... See full document

21

Investigating mode competition and three-dimensional features from two-dimensional velocity fields in an open cavity flow by modal decompositions

... cavity flow, in a regime of mode ...the flow, it fails at identifying the spatial coherent structures associated with dom- inant frequencies of the shear-layer ...spatial coherent ... See full document

22

Computational Prediction of Tip-Vortex of a Swept Wing

... fluid flow, heat transfer, and chemical reactions in complex ...the flow problems using unstructured meshes that can be generated about complex geometries with relative ... See full document

9

Dust devil dynamics

... moved by the wind, bouncing along the surface against the force of gravity. The collisions between the larger and smaller bouncing particles gives the smaller particles a negative charge. There is a complex interplay ... See full document

47

The Interaction Vortex Flow Around Two Bluff Cylinders

... interaction vortex flow features around a pair of parallel arranged bluff cylinders were observed by visualizing water flow experiment at the range of the gap ratio ...of vortex shedding when ... See full document

10

Hydrodynamics of Buoyant Vortex Rings

... investigate flow past the torus. The flow pattern downstream of a torus of different aspect ratios is summarized in Table ...the vortex shedding of the torus (Ar = 3 and 5) at a Reynolds number of ... See full document

122

Some Features of Flow and Particle Transport in Porous Structures

... Increase in Re number shows that isotherms are progressively affected by the flow field. At Re=0.5 they are almost symmetrical with respect to the plane that cuts perpendicularly through the middle of the torus. ... See full document

6

Investigation of Interfacial Interactions in Surfactant-mediated Shear Protection of Animal Cell Culture.

... Previous studies suggest that in order to be an effective shear protectant, the additive must (1) inhibit cell-bubble attachment, and (2) strengthen the mechanical stability of the cells [14–16]. The first ... See full document

183

Non-linear theories in two-dimensional fully and partially cavitating flow.

... streamline flow with the cavity pressure different from the free stream pressure was proposed by Roshko [34], in which the rear of the cavity is specified by two horizontal halflines A'I5 B'l, the free streamline ... See full document

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