Improved Aerodynamics of a Hollow-Blade Axial Flow Fan by Controlling the Leakage Flow Rate by Air Injection at the Rotating Shroud [PDF]
Entropy, 2021 Axial flow fans are used in many fields in order to ensure the mass and heat transfer from air, chiefly in the heating, ventilation and air conditioning industry (HVAC). A more proper understanding of the airflow behavior through the systems is necessary
Michaël Pereira +6 more
doaj +2 more sources
Instantaneous PIV data related to the leakage flow of a low-speed axial-flow fan with rotating shroud [PDF]
Data in Brief, 2019 The present paper is companion to Large-scale unsteady flow structures in the leakage flow of a low-speed axial fan with rotating shroud, Canepa et al., 2019.Two-dimensional PIV has been used in order to investigate the leakage flow in a low-speed fan ...
Edward Canepa +3 more
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Experimental and numerical investigation of endwall flow control through air injection in a contra rotating fan [PDF]
Scientific ReportsThis study reports on an experimental and numerical investigation of tip leakage flow control and its effects on the endwall flow structure and stall evolution of a contra-rotating fan.
Maryam Sadoddin, Hossein Khaleghi
doaj +2 more sources
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.
Barènes, Roger +3 more
core +3 more sources
Engineering Applications of Computational Fluid Mechanics, 2022 Most mixed-flow pumps obtain a saddle-like Q-P curve with a backflow, owing to the increased incidence angle at low flow rates. The backflow was developed near the shroud and followed downstream again at its end to form a recirculating flow. The rotating
Yong-In Kim +3 more
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2022 The effect of pump impeller modification by a new approach, pump impeller shroud trimming (PIST), on the flow field and pump performance is examined both numerically and experimentally.
M. Shadab +4 more
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Experimental Study of the Leakage Flow in an Axial-Flow Fan at Variable Loading
International Journal of Turbomachinery, Propulsion and Power, 2021 The present paper reports a 2D-PIV (particle image velocimetry) study of the effect of the operating point on the leakage flow in a low-speed ring fan.
Edward Canepa +3 more
doaj +1 more source
Characterization of Unsteady Leakage Flow in an Axial Fan
International Journal of Turbomachinery, Propulsion and Power, 2023 The present work reports an experimental study of the leakage flow in a low-speed fan ring. Existing 2D Particle Image Velocimetry (PIV) measurements taken in a meridional plane in front of the rotor gap have been further processed and analyzed by means ...
Matteo Dellacasagrande +3 more
doaj +1 more source
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 +1 more source
Model predictions and experimental results for the rotordynamic characteristics of leakage flows in centrifugal pumps [PDF]
, 1993 The role played by fluid forces in determining the rotordynamic stability and characteristics of a centrifugal pump is gaining increasing attention. The present research investigates the contributions to the rotordynamic forces from the discharge-to ...
Brennen, Christopher E. +1 more
core +1 more source