Flow instabilities in gas turbine chute seals
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. 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.
Flow instabilities in gas turbine chute seals
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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 … 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. from …
WebAug 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 … 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 -
WebDownload. View publication 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 …
WebNov 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. …
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 … it\\u0027s alright to be little bitty svgWebFeb 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 … nesting doll craftWebJun 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 … nesting dogwoods for finchesWebOct 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. nesting doll chess setWebTHESIS: 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 … it\u0027s alright to have a good timeWebOct 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 … nesting doll gold leafWebtitle = "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 … it\u0027s alright to cry