Results 51 to 60 of about 117 (105)

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

Control of Tip Leakage Flow in Axial Flow Compressor Cascade by Suction on the Blade Tip

Journal of Applied Fluid Mechanics, 2018
One of the important ways of improving axial compressor performance is to control the tip leakage flow near the endwall region. Numerical computations were conducted to investigate the impact of blade tip suction on the axial compressor cascade ...
X. Mao, B. Liu, T. Tang
doaj  

Fast-moving Mesh Method and Its Application to Circumferential Non-uniform Tip Clearance in a Single-stage Turbine [PDF]

Journal of Applied Fluid Mechanics
The circumferential non-uniform tip clearance (CNTC) due to casing out-of-roundness adversely affects the turbine aerodynamic performance due to machining and assembly errors, thermal deformation, and improper active clearance control (ACC), etc ...
Y. Zheng, X. B. Jin, H. Yang
doaj   +1 more source

Experimental Study on Evolution of Cavitation Flow Structure in Hump Region of Waterjet Pump [PDF]

Journal of Applied Fluid Mechanics
The waterjet propulsor is a new type of marine propulsion system, which offers the advantages of high speed, good maneuverability, and low vibration and noise.
Y. Long, Z. Zhou, J. Zhong, H. Han
doaj   +1 more source

Effects of cutback squealer tips on the vortices and local loss in the tip region of axial turbine rotor

Propulsion and Energy
Tip leakage loss is a significant source of aerodynamic loss in the turbine rotor and can be controlled by using a cavity tip. In this paper, three configurations with cutback rims are numerically investigated to control the formation and development of ...
Weihao Zhang, Yufan Wang, Kailai Chen, Dongming Huang   +3 more
doaj   +1 more source

PIV-Based Analysis of Internal Flow Evolution and Coherent Structures in a Semi-Open Axial Flow Fan

Machines
The internal flow of a semi-open axial flow fan is highly three-dimensional and unsteady due to the absence of a confined passage. The evolution of complex vortical structures, such as the tip leakage vortex (TLV) and corner separation vortex (CSV ...
Bin Li, Jun Wang, Qianhao Xiao, Yougen Huang   +3 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Study of Energy Loss Characteristics of a Shaft Tubular Pump Device Based on the Entropy Production Method. [PDF]

Entropy (Basel), 2023
Ji D, Lu W, Xu B, Xu L, Lu L.
europepmc   +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

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