Behavior of the Blade Tip Vortices of a Wind Turbine Equipped with a Brimmed-Diffuser Shroud
Energies, 2012 To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a “Wind-Lens turbine”, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES ...
Takanori Uchida +4 more
doaj +2 more sources
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 +3 more sources
EFFECT OF FORCED ROTATING VANELESS DIFFUSERS ON CENTRIFUGAL COMPRESSOR STAGE PERFORMANCE [PDF]
Journal of Engineering Science and Technology, 2011 Non-uniform flow at the exit of the centrifugal impeller mixes in the vaneless space of the diffuser causing a rise in static pressure as well as significant loss of total pressure.
S. SERALATHAN, M. GOVARDHAN
doaj +1 more source
Numerical Study On Parametrical Design Of Long Shrouded Contra-Rotating Propulsion System In Hovering [PDF]
, 2011 The parametrical study of Shrouded Contra-rotating Rotor was done in this paper based on 2D axisymmetric simulations. The calculations were made with an actuator disk as double rotor model. It objects to explore and quantify the effects of different shroud geometry parameters mainly using the performance of power loading (PL), which could evaluate the ...
Huo, Chao +3 more
openaire +3 more sources
Flow and Heat Transfer in Rotating Compressor Cavities With Inverted Shroud-Throughflow Temperature Differences [PDF]
Journal of TurbomachineryAbstract In an aero-engine compressor, co-rotating discs form cavities that interact with an axial throughflow of secondary air at low radius. In the high-pressure (HP) compressor the shroud is hotter than the throughflow (directed downstream to the turbine) and the radial temperature gradient creates buoyancy-induced flow at Grashof ...
Pernak, Mikolaj J. +5 more
openaire +3 more sources
Analysis of shroud and disk heat transfer in aero-engine compressor rotors [PDF]
, 2021 Heat transfer within the rotating compressor cavity of an aero-engine is predominantly governed by buoyancy, which can be characterized by the Grashof number.
Tang, Hui +6 more
core +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
ROUSSETTE, Olivier +6 more
core +1 more source
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
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
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