Results 81 to 90 of about 742,255 (143)

Influence of inflow directions and setting angle of inlet guide vane on hydraulic performance of an axial-flow pump. [PDF]

Sci Rep, 2023
Nguyen DA, Ma SB, Kim S, Kim JH.
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Suppressing tip-leakage vortex cavitation by overhanging grooves

In the present paper, a new control method for tip-leakage vortex (TLV) cavitation is proposed. This method, which combines the effects of grooves and winglets, is made of overhanging grooves (OHGs) fitted at the tip of a hydrofoil.
Cheng, Huaiyu, Ji, Bin, Long, Xinping, Peng, Xiaoxing, Farhat, Mohamed   +4 more
core   +1 more source

Study on the Influence of Tip Clearance on Cavitation Performance and Entropy Production of an Axial Flow Pump

Journal of Marine Science and Engineering
The clearance existing between the impeller rim and the adjacent shroud within the pump configuration establishes conducive circumstances for the initiation of cavitation. The bubbles generated by cavitation will flow forward with the water, blocking the
Lei Yu, Li Cheng, Wentao Xu, Shuaihao Lei   +3 more
doaj   +1 more source

Energy Characteristics of a Bidirectional Axial-Flow Pump with Two Impeller Airfoils Based on Entropy Production Analysis. [PDF]

Entropy (Basel), 2022
Meng F, Li Y.
europepmc   +1 more source

Reducing Effect of Secondary Flows on Axial Compressor Rotor Using Casing Treatment

Engineering Perspective
This study investigates the effectiveness of casing treatment as a passive flow-control technique for mitigating the adverse effects of secondary flow structures on the aerodynamic performance of an axial compressor rotor.
Büşra Yaylak, Ahmet Pınarbaşı, Kamil Arslan   +2 more
doaj   +1 more source

Research on the suppression mechanism of a tip leakage vortex over a hydrofoil with double-control-hole structure [PDF]

Tip leakage vortex (TLV) usually exists at a small tip clearance in axial-flow energy conversion machines, which may induce flow loss, vibration, noise and vortex cavitation.
Shen, Xi, van Esch, B.P.M. (Bart); id_orcid 0000-0002-4478-5925, Gu, Fadong, Shi, Lei, Zhang, Desheng   +4 more
core   +1 more source

Tip leakage vortex characteristics and phase distribution in a helico-axial multiphase pump at different flow rates

Engineering Applications of Computational Fluid Mechanics
This study investigates tip leakage vortex (TLV) characteristics in helico-axial multiphase pumps at 20% inlet gas void fraction across three flow rates (Q/Qdes = 0.9, 1.0, 1.1).
Yibo Gao, Linlin Geng, Patrick G. Verdin, Ibra Fall, Yilong Wang, Desheng Zhang   +5 more
doaj   +1 more source

Numerical investigation of Tip Leakage Vortex Instability and Loss Mechanism in the Tip Region of a Low-Aspect-Ratio Turbine Rotor

In low-aspect-ratio turbine rotors, the hub passage vortex (HPV) migrates radially into the tip region, alters the tip leakage vortex (TLV) evolution and affects its breakdown process and associated losses.
Xin Tong, Xiuming Sui, Wei Zhao, Qingjun Zhao, Guoping Huang, Bin Hu   +5 more
core   +1 more source

Scale effects of the tip-leakage flow with and without cavitation: A numerical study in OpenFOAM

Large eddy simulations of the tip-leakage vortex (TLV) flow around the NACA0009 hydrofoil are performed in OpenFOAM to study the scale effects of the tip-leakage vortex profile with and without cavitation.
Zhao, Xiaotao,, Ji, Bin,, Cheng, Huaiyu,, Bensow, Rickard,   +3 more
core   +1 more source