Flow instabilities in gas turbine chute seals

Author: hpia

August undefined, 2024

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. WebJan 17, 2024 · The present work reports the influence of the 1.5-stage turbine flow field by the front and aft rim seal flow. The interaction between the front and aft purge flow and the mainstream of a 1.5-stage turbine was numerically simulated, and the influence of the front and aft purge flow on the downstream vane was analyzed separately. The results show …

Flow Instabilities in Gas Turbine Chute Seals - Semantic …

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 … east ravine view ct north royalton ohio

Unsteady Computation of Ingress Through Turbine Rim Seals

WebJun 17, 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 … WebTHESIS: AN EXPERIMENTAL STUDY OF INGRESS THROUGH GAS-TURBINE RIM SEALS Turbine rotor disks are among the most highly stressed components in the engine. Metal temperatures must be limited to ensure acceptable life, integrity, and reliability. ... Flow Instabilities in GAS Turbine Chute Seals ASME Journal of Engineering for Gas … WebJul 6, 2011 · Abstract. Unsteady flow dynamics in turbine rim seals are known to be complex and attempts accurately to predict the interaction of the mainstream flow with the secondary air system cooling flows using computational fluid dynamics (CFD) with Reynolds-averaged Navier–Stokes (RANS) turbulence models have proved difficult. cumberland county child support services

Flow instability effects related to purge through a gas …

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 … east raya gardens condominiumWebThe 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 … cumberland county christian school nj

"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 … " - Flow instabilities in gas turbine chute seals

Flow instabilities in gas turbine chute seals

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WebSep 9, 2024 · 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 … WebRim-seals reduce the pressurized purge required to protect highly stressed components. This paper describes an experimental and computational study of flow through a turbine …

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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 … WebAug 24, 2024 · Abstract. 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 …

Webrotor blades of high pressure gas turbine stage design, and a chute seal at the periphery of the wheel-space between the rotor and the stator. The turbine receives the inlet ﬂow from a screw compressor achieving a maximum pressure of 4 bar(a) at a nominal annular mass-ﬂow rate of 4.7 kg/s. Figure 1 is a sectional view of the WebThe 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 components. This paper describes an experimental and computational study of flow through a turbine chute seal. The computations – which include a 360º domain -

WebDec 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. WebThe 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 …

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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 ... east rawson ave food production oak creekWebJul 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. cumberland county city hallWebAug 30, 2024 · In high-pressure turbines, cool air is purged through rim seals at the periphery of wheel-spaces between the stator and rotor discs. The purge suppresses the ingress of hot gas from the annulus but superfluous use is inefficient. In this paper the interaction between the ingress, purge and mainstream flow is studied using unsteady … cumberland county clean and greenWebThis 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. east raya gardens location mapWebtitle = "Flow Instabilities in Gas Turbine Chute Seals", abstract = "The ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim … east raynhamWebDec 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 … cumberland county christmas lightsWebOct 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 … east raymundo