Vortex Cavitation
An empirical approach for propeller tip vortex cavitation noise
... Tip vortex cavitation has a major effect on propeller radiated ...tip vortex cavitation has been calculated at a fixed distance for all three ...and cavitation number ...
13
An improved tip vortex cavitation model for propeller-rudder interaction
... tip vortex cavitation in uniform flow conditions with an isolated propeller in detail and provides experimental ...The cavitation simulations were conducted using commercial CFD software, Star ...for ...
6
Computational fluid dynamic investigations of propeller cavitation in the presence of a rudder
... of cavitation such as sheet, bubble, cloud, tip and hub vortex cavitation (Carlton, ...of cavitation affects the propeller performance ...sheet cavitation is associated with erosive ...
17
Turbulence and Cavitation Suppression by Quaternary Ammonium Salt Additives
... 7. Cavitation formation in the flow recirculation region (cloud cavitation presented in X-ray micro-CT study, also see ...the vortex cavitation region (X-ray phase contrast imaging study, also ...
16
Link between in-nozzle cavitation and jet spray in a gasoline multi-hole injector
... corkscrew vortex cavitation is clearly evident which appears at the bottom of the nozzle hole with large tangential velocity component, and carries a large momentum thus affecting flow around it, turning ...
13
Experimental Determination of Cavitation Characteristics of Hydraulic Turbines
... bubble cavitation detection technique: Travelling bubble cavitation, which starts from guide vane and extends to the runner blades, can be detected with an accelerometer mounted on the guide ...bubble ...
5
Cloud cavitation vortex shedding inside an injector nozzle
... vortical- cavitation structures collapse, as these sites qualify as possible erosion ...the cavitation number is considered and, as can be seen in ...the cavitation number ...larger cavitation ...
21
The Influence of Cavitation Structures on the Erosion of a Symmetrical Hydrofoil in a Cavitation Tunnel
... the cavitation structure in a fluid, to a stage or regime of cavitation, or according to its origin ([1] and ...shape, cavitation can be classi- fied as the cavitation of isolated bubbles, ...
11
A Review on Study of Cavitations in Hydroulic Turbine
... various cavitation erosion situations was carried out to verify the ability of this vortex cavitation generator to produce realistic cavitation erosion with respect to that observed in ...
6
Vortex flow and cavitation in diesel injector nozzles
... of cavitation in simplified transparent nozzle replicas, for example He & Ruiz (1995), Soteriou, Andrews & Smith (1995), Kim, Nishida & Hiroyasu (1997), Soteriou et ...of cavitation in enhancing ...
22
Entrapping of a vortex pair interacting with a fixed point vortex revisited I Point vortices
... first vortex has a positive angular velocity at the maximal position for the parameters taken below the red (marked as 12) line (29) and, conversely, a negative angu- lar velocity for the parameters taken above the ...
31
Computational study of decaying annular vortex flow using the r ε/k-ε turbulence model
... In fact, there have been few experimental attempts of describing the different regimes of annular vortex flows over the last four decades [16–20]. Vanierschot and Bulck [21] examined the effect of swirl on the cold ...
13
Performance of turbulence and cavitation models in prediction of incipient and developed cavitation
... Conclusion 571 572 This paper evaluates the predictive capability of 2-equation and 7-equation RANS models to simulate 573 incipient cavitation in an enlarged rectangular step nozzle and[r] ...
40
Title
... is reference velocity or non-homogeneous velocity. Liquid vaporization process or solution gases emission in it or simultaneous emergence of the two phenomena, their development, density and loss occur within a very ...
9
Cavitation associated low frequency fluctuation
... The cavitation phenomenon involved in hydraulic machinery has been strongly holding the author's ...the cavitation problem of hydraulic turbine which was a specially arranged 3-year research ...machine's ...
255
Dam Instability Risk Analysis of Damaged Spillway
... the cavitation index ...the cavitation index ...the cavitation index decreased and the length of the cavitation cloud ...the cavitation cloud was found sensitive to variations in ...
8
Modelling on cavitation in a diffuser with vortex generator
... on cavitation modelling in Laval nozzle results and experience, problem with the diffuser with vortex generator was ...Different cavitation models were used when modelling in Fluent, flow condition ...
6
Transition of cavitating flow to supercavitation within Venturi nozzle – hysteresis investigation
... where cavitation over NACA profile was investigated or in [4] where analysis of C-D nozzle was ...of cavitation and its transition to the ...of cavitation within the flow, which complicates proper ...
11
Fast swimming hydromedusae exploit velar kinematics to form an optimal vortex wake
... optimizing vortex formation to take advantage of the aforementioned functional benefits discovered in mechanical fluid transport ...the vortex formation ...optimal vortex formation concept to animal ...
9
Physical principle dealing with development of vortices formed by DBD actuator
... of vortex trains generated by plasma dielectric barrier discharge were measured by method of time-resolved PIV with application of phase-averaging of ...of vortex core trajectory, convective velocity, ...
5