Search
Now showing items 1-10 of 14
Liquid Cooling of Fuel Cell Powered Aircraft: The Effect of Coolants on Thermal Management
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Electric propulsors powered by Proton Exchange Membrane Fuel Cells (PEMFCs) offer a net zero solution to aircraft propulsion. Heat generated by the PEMFCs can be transferred to atmospheric air via a liquid cooling system; ...
A Geometry Generation Framework for Contoured Endwalls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The mainstream, or primary, flow in a gas turbine annulus is characteristically two-dimensional over the midspan region of the blading, where the radial flow is almost negligible. Contrastingly, the flow in the endwall and ...
Purge–Mainstream Interactions in a Turbine Stage With Rotor Endwall Contouring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Purge flows are prevalent in modern gas turbine design, allowing for increased turbine entry temperatures. The purge flow passes through a rim seal and interacts with the mainstream flow, modifying the blade secondary flow ...
Experimental Measurements of Ingestion Through Turbine Rim Seals—Part I: Externally Induced Ingress
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a new research facility which experimentally models hot gas ingestion into the wheelspace of an axial turbine stage. Measurements of the CO2 gas concentration in the rimseal region and inside the cavity ...
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 ...
Volumetric Velocimetry Measurements of Film Cooling Jets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents volumetric velocimetry (VV) measurements for a jet in crossflow that is representative of film cooling. VV employs particle tracking to nonintrusively extract all three components of velocity in a ...