Results 241 to 250 of about 72,535 (264)

Numerical Characterization of Hot-Gas Ingestion Through Turbine Rim Seals

Journal of Engineering for Gas Turbines and Power, 2016
This paper deals with a numerical study aimed at the characterization of hot-gas ingestion through turbine rim seals. The numerical campaign focused on an experimental facility which models ingress through the rim seal into the upstream wheel-space of an axial-turbine stage. Single-clearance arrangements were considered in the form of axial- and radial-
Riccardo Da Soghe, Cosimo Bianchini, Carl M. Sangan, James A. Scobie, Gary D. Lock   +4 more
openaire   +1 more source

Using a Tracer Gas to Quantify Sealing Effectiveness for Engine Realistic Rim Seals

Volume 5A: Heat Transfer, 2016
As overall pressure ratios increase in gas turbine engines, both the main gas path and cooling temperatures increase leading to component durability concerns. At the same time effective use of the secondary air for both cooling and sealing becomes increasingly important in terms of engine efficiency.
Kenneth Clark, Michael Barringer, Karen Thole, Carey Clum, Paul Hiester, Curtis Memory, Christopher Robak   +6 more
openaire   +1 more source

Unsteady Interaction Between Annulus and Turbine Rim Seal Flows

Volume 8: Turbomachinery, Parts A, B, and C, 2012
In core gas turbines relatively cold air is purged through the hub gap between stator and rotor in order to seal the disc space against flow ingestion from the main annulus. Although the sealing mass flow rate is commonly very small compared to the main annulus mass flow rate, it can have significant effects on the development of the passage endwall ...
Martin Chilla, Howard Hodson, David Newman   +2 more
openaire   +1 more source

Rim seal arrangement

Sealing Technology, 2020
openaire   +1 more source

Flow mechanism between purge flow and mainstream in different turbine rim seal configurations

Chinese Journal of Aeronautics, 2020
Ziqing Zhang
exaly  

The Effect of Rim Preparation, Labral Augmentation, and Labral Reconstruction on the Suction Seal of the Hip

Arthroscopy - Journal of Arthroscopic and Related Surgery, 2022
Sunikom Suppauksorn, Elizabeth Shewman, Shane J Nho,   +2 more
exaly  

Measurement of Ingress through Gas Turbine Rim Seals [PDF]

, 2011
One of the most important problems facing gas turbine designers today is the ingestion of hot mainstream gases into the wheel-space between the turbine disc and its adjacent casing. A rim seal is fitted at the periphery and a superposed sealant flow is used to prevent ingress.
openaire  

Unsteady hot gas ingestion through the double rim-seals of an axial gas turbine

International Journal of Mechanical Sciences, 2021
Seungyeong Choi, Minho Bang, Hyung Hee Cho   +2 more
exaly  

General method and application for evaluating system performance and sealing effectiveness of turbine rim seal flow and mainstream at large temperature difference

International Journal of Thermal Sciences, 2023
Wenbin Gong, Gaowen Liu, Aqiang Lin
exaly  

Numerical investigation of the blockage effect caused by rim seal flow

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2020
Li Zhou, Fan Yang
exaly