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RISPlume Model for Buoyancy-Induced Flow and Heat Transfer in Closed Rotating Cavities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The radial clearance between the rotating blades and stationary casing of a gas-turbine compressor depends on the radial growth of the rotating discs to which the blades are attached, and this growth depends on the ...
Effect of Radiation on Heat Transfer Inside Aeroengine Compressor Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The blade clearance in aero-engine compressors is mainly controlled by the radial growth of the compressor discs, to which the blades are attached. This growth depends on the radial distribution of the disc temperature, ...
Theoretical Model of Buoyancy Induced Flow in Rotating Cavities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Ekmanlayer equations, which have previously been solved for isothermal source–sink flow in a rotating cavity, are derived for buoyancyinduced flow. Although the flow in the inviscid core is threedimensional and ...
Statistical and Theoretical Models of Ingestion Through Turbine Rim Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In recent papers, orifice models have been developed to calculate the amount of ingestion, or ingress, that occurs through gasturbine rim seals. These theoretical models can be used for externally induced (EI) ingress, ...
Measurement of Heat Transfer and Flow Structures in a Closed Rotating Cavity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Buoyancy-induced flow occurs inside the rotating compressor cavities of gas turbines. These cavities are usually open at the inner radius, but in some industrial gas turbines, they are effectively closed. This paper presents ...
Effect of Ingestion on Temperature of Turbine Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes experimental results from a research facility which experimentally models hotgas ingress into the wheelspace of an axial turbine stage with an axialclearance rim seal. Thermochromic liquid crystal (TLC) ...
Experimental Measurements of Ingestion Through Turbine Rim Seals—Part II: Rotationally Induced Ingress
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Part I of this twopart paper presented experimental results for externallyinduced (EI) ingress, where the ingestion of hot gas through the rim seal into the wheelspace of a gas turbine is controlled by the circumferential ...
Analysis of Shroud and Disk Heat Transfer in Aero-Engine Compressor Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer within the rotating compressor cavity of an aero-engine is predominantly governed by buoyancy, which can be characterized by the Grashof number. Unsteady and unstable buoyancy-induced flow structures influence ...
Unsteady Pressure Measurements in a Heated Rotating Cavity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow in the heated rotating cavity of an aero-engine compressor is driven by buoyancy forces, which result in pairs of cyclonic and anticyclonic vortices. The resultant cavity flow field is three-dimensional, unsteady, ...
Experimental Measurements of Ingestion Through Turbine Rim Seals—Part III: Single and Double Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes experimental results from a research facility, which experimentally models hot gas ingress into the wheelspace of an axial turbine stage. Measurements of CO2 gas concentration in the rimseal region and ...