Results 21 to 30 of about 13,402 (209)
Numerical investigation of tip leakage vortex cavitation
IOP Conference Series: Earth and Environmental Science, 2019 Tip leakage vortex cavitation is a concern for axial hydraulic turbines. Generally, cavitation may occur in the core of the TLV, often leading to erosion of the runner blades and the casing. The objective of this paper is to study the effects of this phenomenon on the hydrodynamics characteristics of a standard NACA0009 blade.
Ali Maghooli +2 more
openaire +1 more source
RANS computations of a confined cavitating tip-leakage vortex [PDF]
European Journal of Mechanics - B/Fluids, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Decaix, Jean +4 more
openaire +3 more sources
Enhancing the surge margin of a Centrifugal Compressor with different Blade Tip Geometry [PDF]
, 2017 The reliability operation for small fuel cells and hybrid fuel cell with gas turbine requires centrifugal compressor surge prevention. This study concerns a high speed centrifugal compressor stage with different blade tip geometries.
Shahin, I. (Ibrahim)
core +1 more source
Research on Cavitation Wake Vortex Structures Near the Impeller Tip of a Water-Jet Pump
Energies, 2023 Cavitation can cause noise in the water-jet pump. If cavitation occurs in the water-jet pump, the hydraulic components in the pump are prone to erosion. The surface erosion reduces energy delivery efficiency and increases maintenance costs.
Yun Long +7 more
doaj +1 more source
AIP Advances, 2023 This paper aims at the numerical analysis of the influence of tip clearance size on the pre-stall flow features of a transonic high-speed compressor by applying the throttle model at the exit of the compressor computational domain.
Khalid Kamal Abdelbagi
doaj +1 more source
Wavelet Analysis of a Blade Tip-Leakage Flow [PDF]
, 2018 The secondary flow generated by the clearance between an isolated airfoil tip and an end-plate is analyzed by means of a zonal large-eddy simulation, in comparison with available experimental data. The flow around the tip clearance is described with full
Boudet, Jérôme +4 more
core +2 more sources
Leakage Flow Characteristics in Blade Tip of Shaft Tubular Pump
Journal of Marine Science and Engineering, 2023 The shaft tubular pump device is widely used in various water diversion projects because of its ultra-low head and large flow characteristics. Due to the tip clearance between the blade and the shroud, it is easy to cause hydraulic mechanical performance
Zhikang Lin +5 more
doaj +1 more source
Panel Discussion on Inducer Design Criteria [PDF]
, 2003 This article reports a panel discussion titled Inducer Design Criteria presented at the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-9).
Acosta, Allan J. +2 more
core +3 more sources
Entropy, 2020 To investigate the influence of the change of tip clearance size on the control effect of the endwall suction, the effects of endwall suction on the aerodynamic performance of the axial compressor cascade were studied numerically.
Botao Zhang +3 more
doaj +1 more source
Aerospace, 2023 Experimental and numerical studies of a linear high-loaded turbine cascade with a dual−cavity tip structure are presented in this paper. The experimental conditions contained an increase in the outlet Mach number from 0.42 to 0.92, a change in the ...
Yingjie Chen +4 more
doaj +1 more source