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Loss Breakdown in Axial Turbines: A New Method for Vortex Loss and Wake Detection From 3D RANS Simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To enhance turbine efficiency, it is essential to mitigate the loss generated by irreversible phenomena taking place in turbine flows, including boundary layers, shock waves, vortices, and trailing edge wakes. A fast and ...
Delineating Loss Sources Within a Linear Cascade With Upstream Cavity and Purge Flow
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Purge air is injected in cavities at the hub of axial turbines to prevent hot mainstream gas ingestion into interstage gaps. This process induces additional losses for the turbine due to an interaction between the purge ...
Description of the Flow in a Two-Stage Low-Pressure Turbine With Hub Cavities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In gas turbine, multi-stage row blading and technological effects can exhibit significant differences for the flow compared with isolated smooth blade rows. Upstream stages promote a non-uniform flow field at the inlet of ...