Dead space washout by intentional leakage flow during conventional ventilation of premature infants—an experimental study
Sign Up to like & getrecommendations! Published in 2022 at "Pediatric Pulmonology"
DOI: 10.1002/ppul.25906
Abstract: Invasive mechanical ventilation poses a strong risk factor for the development of chronic lung disease in preterm infants. A reduction of the dead space as part of the total breathing volume would reduce the ventilation… read more here.
Keywords: space washout; dead space; leakage flow; ventilation ... See more keywords
The effect of hub leakage on the aerodynamic performance of high-pressure steam turbine stages
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-016-1247-6
Abstract: In a steam turbine, leakage occurs at the gap between the rotor shafts and diaphragms and is injected into the main stream at the inlet of the rotor blade. Although this hub leakage flow is… read more here.
Keywords: leakage flow; turbine; leakage; hub leakage ... See more keywords
A flow model for tip leakage flow in turbomachinery using a square duct with a longitudinal slit
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.105460
Abstract: Abstract A physical flow model to simulate the tip leakage flow (TLF) is proposed, in order to reproduce the jet flow/main flow shear mechanism of tip leakage vortex (TLV) roll-up in turbomachinery. The model is… read more here.
Keywords: tip leakage; leakage flow; model; flow model ... See more keywords
Large-scale unsteady flow structures in the leakage flow of a low-speed axial fan with rotating shroud
Sign Up to like & getrecommendations! Published in 2019 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2018.10.020
Abstract: Abstract The leakage flow in low-speed fans provided with rotating shroud has been surveyed by means of two-dimensional LDV and PIV. Measurements have been taken upstream of the rotor and in the gap area at… read more here.
Keywords: rotor; speed; flow structures; leakage flow ... See more keywords
Leakage flow flutter in a low-speed axial-flow fan with shrouded blades
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115275
Abstract: Abstract A large-amplitude axial vibration of a rotor fan with shrouded blades has been experimentally observed. The analysis of the Campbell diagram shows that the vibration is related to a backward-whirl vibrational mode of the… read more here.
Keywords: leakage flow; shrouded blades; vibration; fan shrouded ... See more keywords
Prediction, monitoring, and interpretation of dam leakage flow via adaptative kernel extreme learning machine
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.108161
Abstract: Abstract The magnitude of leakage in the dam body and its foundation can be used as an important indicator in dam risk management. This study presents a data mining and monitoring framework for safety control… read more here.
Keywords: leakage flow; dam; leakage; dam leakage ... See more keywords
Numerical investigation of the effect of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Applications of Computational Fluid Mechanics"
DOI: 10.1080/19942060.2018.1509806
Abstract: ABSTRACT Abrasive wear in the clearance gap of guide vanes (GVs) increases the gap size, which deteriorates the flow and causes loss of efficiency. This paper investigates the performance of a Francis turbine including erosion-induced… read more here.
Keywords: leakage flow; erosion; effect; performance ... See more keywords
Leakage flow characteristic of radial inflow turbine adopted in CAES system: Review on progress
Sign Up to like & getrecommendations! Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/09544062211027602
Abstract: Compressed Air Energy Storage (CAES) System is an important power output component of the energy storage technology. Radial inflow turbine is the main power output device in CAES system, it is operated at extraordinary operation… read more here.
Keywords: turbine; leakage flow; caes system; caes ... See more keywords
Effects of leakage vortex on aerodynamic performance and loss mechanism of steam turbine
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/0957650919831916
Abstract: To avoid friction, a clearance between the rotor blade tip and the cylinder is needed in a steam turbine. As a result, the leakage flow is formed under the pressure difference which mixes with the… read more here.
Keywords: steam turbine; leakage flow; steam; loss ... See more keywords
Investigation on the effects of winglet geometry in a high loading compressor rotor
Sign Up to like & getrecommendations! Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/09576509211017004
Abstract: The tip winglet is employed to improve the flow stability of NASA Rotor 37. Two suction-side winglets with the maximum width of 0.25 and 0.5 times of the width of local blade tip section and… read more here.
Keywords: leakage flow; rotor; geometry; winglet ... See more keywords
Large-Eddy Simulation of a Single Airfoil Tip-Leakage Flow
Sign Up to like & getrecommendations! Published in 2021 at "AIAA Journal"
DOI: 10.2514/1.j060057
Abstract: A large-eddy simulation is performed on a single nonrotating airfoil with tip gap in order to highlight the noise sources in the tip-leakage flow. The geometry is composed of a NACA 5510 airfoil (5... read more here.
Keywords: airfoil; eddy simulation; large eddy; leakage flow ... See more keywords