Results 1 to 10 of about 215,871 (234)

Inertial waves in turbine rim seal flows [PDF]

open access: yesPhysical Review Fluids, 2020
Rotating fluids are well-known to be susceptible to waves. This has received much attention from the geophysics, oceanographic and atmospheric research communities. Inertial waves, which are driven by restoring forces, for example the Coriolis force, have been detected in the research fields mentioned above. This paper investigates inertial waves in
Feng Gao, John W. Chew, Olaf Marxen
openaire   +4 more sources

Microfracture of Acetabular Rim After Segmental Labral Resection to Restore the Morphology and Function of Labrum: A Retrospective Study of More than 2 Years Follow‐up

open access: yesOrthopaedic Surgery, 2021
Objective To report on the clinical outcome of patients undergoing combined arthroscopic treatment of labral resection and microfracture at the rim of acetabulum at a minimum 2‐year follow‐up.
Tiao Su   +3 more
doaj   +1 more source

Earthquake Natech Risk Assessment in Major-hazard Industrial Plants, a Case Study: Cylindrical Liquid Storage Tank with Floating Roof

open access: yesChemical Engineering Transactions, 2022
The experience of several failures of equipment in industrial plants due to earthquake has shown that incidental scenarios like explosion, fire or hazardous release can occur. In Italy, industrial plants that operate with hazardous substances are subject
Michela Salimbeni   +2 more
doaj   +1 more source

The Effect of the Purge–Mainstream Density Ratio on Rim Seal Fluid Mechanics

open access: yesInternational Journal of Turbomachinery, Propulsion and Power
Significant density ratios arise in a gas turbine due to severe temperature gradients between the hot mainstream gases leaving the combustor and the superposed purge flow injected from the secondary air system. Engineers seek to minimise the ingestion of
Jason S. Boldero   +5 more
doaj   +1 more source

Inside Out: A Novel Labral Repair and Advancement Technique

open access: yesArthroscopy Techniques, 2014
Labral tears are a significant cause of hip pain and are currently the most common indication for hip arthroscopy. Compared with labral debridement, labral repair has significantly better outcomes in terms of both daily activities and athletic pursuits ...
Omer Mei-Dan, M.D.   +3 more
doaj   +1 more source

Flow mechanisms in axial turbine rim sealing [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2018
This paper presents a review of research on turbine rim sealing with emphasis placed on the underlying flow physics and modelling capability. Rim seal flows play a crucial role in controlling engine disc temperatures but represent a loss from the main engine power cycle and are associated with spoiling losses in the turbine. Elementary models that rely
John W Chew, Feng Gao, Donato M Palermo
openaire   +3 more sources

Numerical Research on Flow Characteristics at High Radii of Rim Seals with Different Geometric Structures

open access: yesEnergies
In the high-temperature mainstream of gas turbines, there is a rim clearance between the rotor and the stator. A rim seal is to prevent the intrusion of high-temperature gas by spraying cool fluid from the inside of the rim clearance to the outside.
Qichao Xue, Xueying Li, Jing Ren
doaj   +1 more source

Therapeutic effect of arthroscopic segmental labral resection combined with microfracture at the rim of the acetabulum for irreparable labral lesions

open access: yesDi-san junyi daxue xuebao, 2019
Objective To explore the clinical outcomes and the possibility of labrum regrowth in patients undergoing arthroscopic segmental labral resection combined with microfracture at the rim of the acetabulum for irreparable labral lesions.
SU Tiao, CHEN Guangxing, LI Jing
doaj   +1 more source

A Group of Late Roman Unguentaria Found in Perge Stadium

open access: yesHöyük, 2023
This study focuses on 68 terracotta unguentaria discovered during the excavation conducted at the Perge stadium. Monograms were identified in 11 of these.
Aylin Kılınç   +2 more
doaj   +1 more source

Flow Structures Inside a Rotor-Stator Cavity

open access: yesInternational Journal of Rotating Machinery, 2001
This paper describes an experimental investigation initiated to determine the threedimensional flow field inside the rim seal cavity of a double-shrouded rotor-stator system.
T. Geis, J. Ebner, S. Kim, S. Wittig
doaj   +1 more source

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