Results 31 to 40 of about 27,884 (312)
Forces on Centrifugal Pump Impellers [PDF]
, 1985 Forces are exerted on a centrifugal pump impeller, due to the asymmetry of the flow caused by the volute of diffuser, and to the motion of the center of the impeller whenever the shaft whirls. Recent work in the measurement of these forces as a function
Acosta, Allan +3 more
core +1 more source
Swirling Combustor Energy Converter: H2/Air Simulations of Separated Chambers
Energies, 2015 This work reports results related to the “EU-FP7-HRC-Power” project aiming at developing micro-meso hybrid sources of power. One of the goals of the project is to achieve surface temperatures up to more than 1000 K, with a ∆T ≤ 100 K, in order to be ...
Angelo Minotti, Paolo Teofilatto
doaj +1 more source
Aerospace, 2022 The tiltrotor wing structure is one of the most critical and heavily investigated structures in design due to the fundamental need to consider the interactions between the wing, pylon, and rotor systems to achieve aircraft aeroelastic stability.
Aniello Daniele Marano +8 more
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Experimental Study of the Flow Field Inside a Whirling Annular Seal [PDF]
Tribology Transactions, 1994 The flow field inside a whirling annular seal has been measured using a 3-D Laser Doppler Anemometer (LDA) system. The seal investigated has a clearance of 1.27 mm, a length of 37.3 mm and is mounted on a drive shaft with a 50 percent eccentricity ratio. This results in the rotor whirling at the same speed as the shaft rotation (whirl ratio = 1.0). The
Gerald L. Morrison +2 more
openaire +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
On the flow in an annulus surrounding a whirling cylinder [PDF]
Journal of Fluid Mechanics, 1976 When fluid in an annulus between two cylinders is set in motion by whirling movements of one or both of the cylinders, dynamic forces are imposed by the fluid on the cylinders. Knowledge of these forces is frequently important, indeed often critical, to the engineer designing rotor systems or journal bearings.
openaire +2 more sources
Hybrid energy converter based on swirling combustion chambers: the hydrocarbon feeding analysis
AIMS Energy, 2017 This manuscript reports the latest investigations about a miniaturized hybrid energy power source, compatible with thermal/electrical conversion, by a thermo-photovoltaic cell, and potentially useful for civil and space applications.
Angelo Minotti
doaj +1 more source
Analysis of the Turbulent Lubrication of a Textured Hydrodynamic Journal Bearing
Lubricants, 2023 In order to investigate the turbulent lubrication performance of a textured hydrodynamic journal bearing (THJB), a model of turbulent lubrication was established in this paper. The variations in the Reynolds number, oil film thickness, oil film pressure,
Yazhou Mao +3 more
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Energies, 2016 This work reports the performance of an energy converter characterized by an emitting parallelepiped element with inside two, three, or five swirling connected combustion chambers.
Angelo Minotti
doaj +1 more source
Energies, 2021 An overlap auxiliary ventilation system is very often used for driving roadways in methane-rich coal seams. An overlap zone between the outlets of the forcing duct ends with a whirl flow air-duct (WFAD) and the exhaust duct ends with a dust scrubber that
Dariusz Obracaj +2 more
doaj +1 more source