Flow instabilities in gas turbine chute seals

WebThis paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of chute seal design. WebOct 13, 2024 · This paper presents WMLES simulations of a chute type turbine rim seal. Configurations with an axisymmetric annulus flow and with nozzle guide vanes fitted (but without rotor blades) are considered.

Flow Instabilities in Gas Turbine Chute Seals ScienceGate

WebDec 14, 2024 · This paper proposes a new-designed rim seal configuration with sealing holes based on the conventional radial rim seal, and presents a numerical comparison of the sealing performance between the conventional sealing flow supply configuration and the new sealing flow supply configuration with holes at different sealing flow rates. The … WebThis paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of chute seal design. The … rawls school of accounting https://bruelphoto.com

Flow Instabilities in Gas Turbine Chute Seals Request …

WebMar 3, 2015 · To examine the simplified model to predict the ingress flow rate which was formerly proposed by the authors, the scaling characteristics of a shrouded rotor-stator system with a nonaxisymmetric main flow is studied using gas concentration measurements in the wheel-space. The predicted value for the sealing effectiveness as well as the … WebThe ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurized purge required to protect highly stressed … WebFeb 16, 2010 · The present paper gives a contribution to a better understanding of the flow at the rim and in the wheel space of gas turbines. Steady state and time-accurate numerical simulations with a commercial Navier-Stokes solver for a 1.5 stage turbine similar to the model treated in the European Research Project ICAS-GT were conducted. In the … rawls scholarships

Flow instability effects related to purge through a gas …

Category:Unsteady Computation of Ingress Through Turbine Rim Seals

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Flow instabilities in gas turbine chute seals

FLOW INSTABILITY EFFECTS RELATED TO PURGE …

WebEnter the email address you signed up with and we'll email you a reset link. WebFeb 1, 2024 · The ingress of hot annulus gas into stator–rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurized purge required to protect highly stressed components. This paper describes an experimental and computational study of …

Flow instabilities in gas turbine chute seals

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WebOct 17, 2024 · In high-pressure turbines, cool air is purged through rim seals at the periphery of wheel-spaces between the stator and rotor disks. The purge suppresses the … WebJun 17, 2024 · The fluid flow in gas turbine rim seals and the sealing effectiveness are influenced by the interaction of the rotor and the stator disk and by the external flow …

WebJun 11, 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 … WebNov 5, 2024 · Abstract. The ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurised purge required to …

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WebN2 - This paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of chute seal design. The influence of flow coefficient on the sealing effectiveness at constant purge flow rate through the wheel-space is determined.

WebOct 1, 2015 · Mike Wilson is a Senior Lecturer in Mechanical Engineering and the Director of Undergraduate Studies in the Department. His research involves the computation of internal flow and heat transfer, mainly for rotating disc systems relevant to the internal cooling air systems used in gas turbine engines. Dr Wilson obtained a BSc (Hons) in Pure ... rawls second principle of justice meansWebThe ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurised purge required to protect highly-stressed … rawls school of businessWebDec 4, 2012 · Measurement of ingress through gas turbine rim seals. PhD Thesis, University of Bath, UK, 2011. Google Scholar. 25. Laitone EVNew compressibility correction for two-dimensional subsonic flowJ Aeronaut Sci1951185350–350. ... Flow Instabilities in Gas Turbine Chute Seals. Go to citation Crossref Google Scholar. rawls school of business texas techWebJun 17, 2024 · This paper presents experimental and computational results using a 1.5-stage test rig designed to investigate the effects of ingress through a double radial overlap rim-seal. The effect of the vanes and blades on ingress was investigated by a series of carefully controlled experiments: first, the position of the vane relative to the rim seal was … rawls scheer clary \u0026 mingo pllcWebNov 19, 2024 · Rim seals are fitted at the periphery of these cavities to reduce the pressurised purge required to protect vulnerable, highly-stressed engine components. … rawls second stage bargainWebJul 1, 2012 · Flow Instabilities in Gas Turbine Chute Seals. J. Horwood, Fabian Patricio Hualca Tigsilema, +5 authors J. Fridh; Engineering. ... The fluid flow in gas turbine rim seals and the sealing effectiveness are influenced by the interaction of the rotor and the stator disk and by the external flow in the hot gas annulus. rawls senior campaignhttp://www.diva-portal.org/smash/record.jsf?pid=diva2:1423615 rawls school of business ranking