Results 51 to 60 of about 72,478 (206)

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

Hydraulic support for dynamic testing Patent [PDF]

open access: yes, 1967
Hydraulic support apparatus for dynamic testing of space vehicles under near-free flight ...
Vonpragenau, G. L.
core   +1 more source

Impact of Purge Injection on Rim Seal Performance

open access: yesApplied Sciences
One of the most critical challenges in gas turbine design is preventing the ingestion of hot mainstream gases into the disk space between the stator and rotor disks.
Matteo Caciolli   +4 more
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

How to Use Your Pressure Canner [PDF]

open access: yes, 1949
PDF pages:
Beall, Thelma, Blard, Ruth M.
core  

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

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

Theoretical modelling of hot gas ingestion through turbine rim seals

open access: yesPropulsion and Power Research, 2012
The rim seals of gas turbines are used to prevent or reduce the ingestion of hot mainstream gas into the wheel-space between the turbine rotor and its adjacent stationary casing.
J. Michael Owen
doaj   +1 more source

Sensory Substitution, Key to Inclusive Learning [PDF]

open access: yes, 2020
Visually impaired students, in primary education, encounter unique challenges while learning creative skills, exploring artistic expression and developing problem-solving skills, because so much instructional content is delivered visually.
Zahir, Fathima Z
core   +1 more source

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