Results 21 to 30 of about 6,640,199 (335)

Unsteady Numerical Investigation on the Sealing Effectiveness and Flow Field in Different Rim Seal Geometries

open access: yesAerospace, 2022
A rim seal is often used to prevent the ingress of high-temperature gas into the turbine disk cavity and protect the turbine disk from damage. Based on the overlapping rim seal (Seal-A), this paper proposes two more composite sealing structures (Seal-B ...
Qingcai Zhang   +3 more
semanticscholar   +1 more source

Correlating Time-Resolved Pressure Measurements With Rim Sealing Effectiveness for Real-Time Turbine Health Monitoring

open access: yesVolume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, 2021
Purge flow is bled from the upstream compressor and supplied to the under-platform region to prevent hot main gas path ingress that damages vulnerable under-platform hardware components.
Eric Deshong   +5 more
semanticscholar   +1 more source

Flow characteristics in turbine wheel space cavity

open access: yesEnergy Reports, 2021
Unsteady flow structures unrelated to rotating frequency in the turbine wheel space cavity has been observed and reported in a number of recent rim sealing investigations.
Lei Xie   +4 more
doaj   +1 more source

Investigations of the leakage characteristic and the sealing effectiveness on turbine bite rim seals

open access: yesJournal of Thermal Science and Technology, 2018
In order to meet the needs of designing for high performance secondary air system in the turbine, a new turbine bite engineering rim seal of type-A and the related test rig were designed and set up.
Weilin DONG, Suofang WANG, Pengfei LI
doaj   +1 more source

Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc

open access: yesAerospace, 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

Contraceptive Effect of Proligestone on Spotted Seals and Crossbreeds of Spotted Seals and Harbor Seals

open access: yesJournal of Veterinary Medical Science, 2003
Spotted seals (Phoca largha) and related crossbreeds maintained at Kamogawa Sea World breed seasonally from the end of January to middle of March. For contraception in these animals, the effect of a single administration of a contraceptive synthetic luteal hormone for dogs, proligestone (PRG), was investigated.
KATSUMATA, Etsuko   +2 more
openaire   +3 more sources

Numerical Investigation of the Effect of Radial Lip Seal Geometry on Sealing Performance [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
Sealing elements are often needed in industry and especially in machine design. With the change and development of machine technology from day to day, sealing elements show continuous development and change in parallel with these developments. Many factors influence the performance of the sealing elements such as shaft surface roughness, radial force ...
Tok, Görkem   +2 more
openaire   +2 more sources

Infiltration and sealing for managing non-cavitated proximal lesions: a systematic review and meta-analysis

open access: yesBMC Oral Health, 2021
Background Infiltration and sealing are micro-invasive treatments for arresting proximal non-cavitated caries lesions; however, their efficacies under different conditions remain unknown.
Yuanyuan Chen, Dongru Chen, Huancai Lin
doaj   +1 more source

Sealing mastics for road surfacing in Siberian regions [PDF]

open access: yes, 2020
This paper provides the results of the studies of polymer-bitumen sealing compounds for sealing seams and cracks in asphalt con-crete road. The polymers used were waste from Krasnoyarsk factories (rubber-fabric and butyl-rubber crumbs) and Tomsk ...
Maria, Berseneva   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy