Results 31 to 40 of about 1,609 (213)

Focusing Schlieren Visualization of Transonic Turbine Tip-Leakage Flows

International Journal of Turbomachinery, Propulsion and Power, 2020
This paper presents a focusing schlieren system designed for the investigation of transonic turbine tip-leakage flows. In the first part, the functional principle and the design of the system are presented. Major design considerations and necessary trade-
Maximilian Passmann, Stefan aus der Wiesche, Franz Joos   +2 more
doaj   +1 more source

Numerical Study on Vortical Flow Structure and Performance Enhancement of Centrifugal Compressor Impeller

Applied Sciences, 2022
The performance and efficiency of a centrifugal compressor are usually affected by the highly complex 3-dimensional flow structures which develop in the flow field of the compressor.
Seongbin Hong, Jophous Mugabi, Jae-Ho Jeong   +2 more
doaj   +1 more source

The Role of Tip Leakage Vortex Breakdown in Compressor Rotor Aerodynamics [PDF]

Journal of Turbomachinery, 1998
The breakdown of tip leakage vortex has been investigated on a low-speed axial compressor rotor with moderate blade loading. Effects of the breakdown on the rotor aerodynamics are elucidated by Navier–Stokes flow simulations and visualization techniques for identifying the breakdown.
Masato Furukawa, Masahiro Inoue, Kazuhisa Saiki, Kazutoyo Yamada   +3 more
openaire   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

Effect of moving end wall on tip leakage flow in a compressor cascade with different clearance heights

AIP Advances
Numerical simulations have been carried out to investigate the effect of the moving end wall on the tip leakage flow structure in a compressor cascade with four different tip clearance heights.
Jiexuan Hou, Yangwei Liu
doaj   +1 more source

Study on the Dynamic Structure and Unsteady Characteristics of Vortex Flow for Blade Tip Clearance Leakage of a Single-vane Spiral Centrifugal Pump [PDF]

Journal of Applied Fluid Mechanics
Numerical simulations based on the RANS equations and the SST k‑ω turbulence model were carried out to study the turbulence characteristics in the tip clearance region of a spiral centrifugal pump.
W. Cao, J. Tang
doaj   +1 more source

Numerical Analysis of the Effects of Different Rotor Tip Gaps in a Radial Turbine Operating at High Pressure Ratios Reaching Choked Flow

Energies, 2022
To operate, radial turbines used in turbochargers require a minimum tip gap between the rotor blades and the stationary wall casing (shroud). This gap generates leakage flow driven by the pressure difference between the pressure and suction side. The tip
José Galindo, Andrés Tiseira, Roberto Navarro, Lukas Benjamin Inhestern, Juan David Echavarría   +4 more
doaj   +1 more source

Reynolds Stresses and Dissipation Mechanisms in a Turbine Tip Leakage Vortex [PDF]

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, 1994
Reynolds stresses and mean flow velocities were measured throughout a tip leakage vortex in a large scale linear turbine cascade using hot-wire anemometry. An X-wire endflow probe was rotated about the probe axis using a computer controlled stepper motor. An improved solution procedure reduced the approximations involved in the Reynolds stress analysis.
John Moore, Joan G. Moore, Scott P. Heckel, Rafael Ballesteros   +3 more
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source