Results 11 to 20 of about 10,932 (224)
Machines, 2023 Small-Scale Turbines (SSTs) are among the most important energy-extraction-enabling technologies in domestic power production systems. However, owing to centrifugal forces, the high rotating speed of SSTs causes excessive strains in the aerofoil portions
Ahmed M. Daabo +8 more
doaj +1 more source
Leakage flow simulation in a specific pump model [PDF]
, 2014 This paper deals with the influence of leakage flow existing in SHF pump model on the analysis of internal flow behaviour inside the vane diffuser of the pump model performance using both experiments and calculations. PIV measurements have been performed
BAYEUL-LAINE, Annie-Claude +5 more
core +6 more sources
Numerical simulation of turbulent flow between shrouded contra-rotating disks [PDF]
Advances in Mechanical Engineering, 2016 The turbulent flow between shrouded contra-rotating disks was numerically studied with a two-layer turbulence model and a modified Launder–Sharma low-Reynolds number k- ε model. The dissipation rate decrease caused by solid body rotation was considered in the second model.
Shu-Xian Chen +3 more
openaire +2 more sources
The Effect of Inlet Swirl on the Rotordynamic Shroud Forces in a Centrifugal Pump [PDF]
, 1992 The role played by fluid forces in determining the rotordynamic stability of a centrifugal pump is gaining increasing attention. The present research investigates the contributions to the rotordynamic forces from the discharge-to-suction leakage flows ...
Acosta, A. J. +3 more
core +2 more sources
A Review of Turbine and Compressor Aerodynamic Forces in Turbomachinery
Lubricants, 2023 Aerodynamic forces due to blade-tip clearance eccentricity are a known destabilizing source in rotating machinery with unshrouded impellers. Dynamic forces also appear in shrouded impellers, due to changes in the pressure in the gap between the impeller ...
Luis San Andrés
doaj +1 more source
Rotordynamic Forces from Discharge-to-Suction Leakage Flows in Centrifugal Pumps: Effects of Geometry [PDF]
, 1997 The rotordynamic forces generated by the fluid flow through the impeller leakage path of a centrifugal pump are now well established. The present paper examines the effects of modifying the leakage path geometry by changing the front shroud, from a ...
Bircumshaw, Brian L. +2 more
core +2 more sources
Study on the Damping Mechanism of the Shrouded Blade considering Contact Features
Shock and Vibration, 2019 A dynamic model of the rotating shrouded blade is established, considering the shroud mass, the Coriolis force, and the centrifugal stiffening effect.
Chaofeng Li +3 more
doaj +1 more source
Measurement Of Aerodynamically Induced Blade Distortion On A Shrouded Counter-Rotating Prop-Fan
Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, 2022 Blade deformation on a 1 m diameter composite fan rotor is measured simultaneously using stereoscopic image pattern correlation technique (IPCT) and blade-tip imaging. Absolute referencing of the blades is made possible by simultaneously tracking a marker on the hub using a fourth camera.
Klinner, Joachim +6 more
openaire +2 more sources
International Journal of Rotating Machinery, 2017 The transition process from a diffuser rotating stall to a stage stall in a centrifugal compressor with a vaned diffuser was investigated by experimental and numerical analyses. From the velocity measurements, it was found that the rotating stall existed
Nobumichi Fujisawa, Yutaka Ohta
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Effect of Relative Movement between the Shroud and Blade on Tip Leakage Flow Characteristics
Energies, 2017 An experimental and numerical investigation into the tip leakage flow of a turbine rotor is carried out using a particle image velocimetry (PIV) system and the commercial software ANSYS CFX 14.0.
Xiaochun Wang +3 more
doaj +1 more source