Results 61 to 70 of about 4,314 (241)
High-pressure turbine rim seal design for increased efficiency [PDF]
, 2016 In high-pressure turbines, compressor air is used to purge the disc space in an effort to protect the blade roots and the turbine disc from overheating and failure.
Hodson, HP +4 more
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Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc
Aerospace, 2019 Ingress is the penetration of a hot mainstream gas in a turbine annulus through the rim seal into the wheel-space between the rotating turbine disc (the rotor) and the adjacent stationary casing (the stator).
Hui Tang +6 more
doaj +1 more source
Flow mechanisms in axial turbine rim sealing [PDF]
Proceedings 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
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT In chocolate‐coated products, oil migration can lead to chocolate softening and discoloration, filling hardening, and reduced consumer acceptance. This study examined three fats (soy‐, palm‐, and palm‐kernel (PK) based), crystallized under different conditions (cooling rate and high intensity ultrasound (HIU)) with differing oil binding ...
Audrey Lidgard +2 more
wiley +1 more source
Numerical Investigation of Rim Seal Flow in a Single-Stage Axial Turbine
EngThis study investigates rim seal flow in axial turbine configurations through a combined experimental–numerical approach, with the objective of identifying sealing-flow conditions that minimize ingestion while limiting aerodynamic losses.
Tuong Linh Nha +4 more
doaj +1 more source
Orthopaedic 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
Chemical 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
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
The Effect of the Purge–Mainstream Density Ratio on Rim Seal Fluid Mechanics
International Journal of Turbomachinery, Propulsion and PowerSignificant 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
Arthroscopy 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