Results 61 to 70 of about 742,255 (143)

Numerical exploration of tip leakage vortex cavitation in a waterjet pump

Water Science and Engineering
Tip leakage vortex (TLV) cavitation poses significant challenges to the efficiency and stability of axial waterjet pumps. This study performed numerical simulations to analyze the evolution of flow and vorticity fields under various cavitation conditions
Rui Zhang, Jing-yi Xing, Zheng-xin Wang, Xu-jie Ding, Jian-ping Li, Bang-hua Chen, Sen Li, Hao Yang, Jian-gang Feng   +8 more
doaj   +1 more source

Analysis of Different POD Processing Methods for SPIV-Measurements in Compressor Cascade Tip Leakage Flow

Energies, 2019
Though the proper orthogonal decomposition (POD) method has been widely adopted in flow analysis, few publications have systematically studied the influence of different POD processing methods on the POD results.
Lei Shi, Hongwei Ma, Lixiang Wang
doaj   +1 more source

Mind the gap - tip leakage vortex in axial turbines [PDF]

The tendency of designing large Kaplan turbines with a continuous increase of output power is bringing to the front the cavitation erosion issue. Due to the flow in the gap between the runner and the discharge ring, axial turbine blades may develop the ...
Farhat, M., Decaix, J., Dreyer, M., Muench-Alligne, C.   +3 more
core   +2 more sources

Visualized observations of trajectory and dynamics of unsteady tip cloud cavitating vortices in axial flow pump

Journal of Fluid Science and Technology, 2017
A large-scale perpendicular cavitating vortices (PCVs), at the trailing edge of attached cavitation on the blade suction side near the tip region, has been found recently due to the great impact on performance breakdown in an axial waterjet pump. However,
Lei SHI, Desheng ZHANG, Ruijie ZHAO, Weidong SHI, B.P.M. (Bart) van ESCH   +4 more
doaj   +1 more source

Numerical and experimental investigation of tip leakage vortex cavitation patterns and mechanisms in an axial flow pump

, 2015
The tip leakage vortex (TLV) cavitating flow in an axial flow pump was simulated based on an improved shear stress transport (SST) k-ω turbulence model and the homogeneous cavitation model. The generation and dynamics of the TLV cavitation throughout the
Zhang, D., Pan, D., Shi, W., Dubuisson, M.H.R.   +3 more
core   +1 more source

The Vortex, Volume One

, 1975
This file unit contains the first volume of The Vortex, a student led publication established on the University of Central Arkansas campus in ...
The Vortex Magazine of Literature and Fine Arts; University of Central Arkansas Department of English
core   +1 more source

Vortex Lattice Method Investigation of Tip-Leakage Flow

International audienceThe use of a vortex lattice method (VLM) is investigated on a tip-leakage flow single-blade configuration (NACA 0012) for a wide range of tip gaps.
Boudet, Jérôme, Montsarrat, Christophe
core   +1 more source

A Review of Tip Clearance in Propeller, Pump and Turbine

Energies, 2018
Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj   +1 more source

Tip Leakage Vortex Cavitation from the Tip Clearance of a Single Hydrofoil [PDF]

, 2001
Focusing on the tip leakage vortex cavitation, experimental and numerical studies were carried out as the first step of the investigation of cavitations in tip leakage flow. For a single hydrofoil with a tip clearance, tip leakage vortex cavitations were
Yoshida, Yoshiki, Tsujimoto, Yoshinobu, Higashi, Seiji   +2 more
core  

A study on tip leakage vortex dynamics and cavitation in axial-flow pump

, 2017
The tip leakage flows and related cavitation in the tip region of an axial-flow pump were investigated in detail using the numerical and experimental methods.
Shi, Weidong, Esch, BPM Bart van, van Esch, B.P.M., Zhang, Desheng, Yongxin Jin, Desheng Zhang, B P M (Bart) van Esch, Lei Shi, Weidong Shi, Zhang, D, van Esch, B.P.M.; id_orcid, Shi, Lei, Jin, Yongxin   +12 more
core   +1 more source