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RISAnalysis of Averaging Methods for Nonuniform Total Pressure Fields
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A common objective in the analysis of turbomachinery components (nozzle guide vanes (NGVs) or rotor blades, for example) is to calculate performance parameters, such as total pressure or kinetic energy (KE) loss coefficients, ...
Experimental and Numerical Analysis of Loss Characteristics of Cooled Transonic Nozzle Guide Vanes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article presents high-fidelity experimental traverse measurements downstream of an annular cascade of transonic nozzle guide vanes (NGVs) from a high-pressure (HP) turbine stage. The components are heavily cooled real ...
Impact of Trailing Edge Overhang Length on the Loss Characteristics of Fully Cooled Transonic Nozzle Guide Vanes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The trailing edge (TE) design of a cooled high-pressure (HP) nozzle guide vane (NGV) requires consideration of both cooling and aerodynamic performances. Two designs are in common use: the centered-ejection design, in which ...
Understanding Capacity Sensitivity of Cooled Transonic Nozzle Guide Vanes: A Parametric Experimental and Computational Study of the Impact of Trailing Edge Geometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-pressure (HP) nozzle guide vane (NGV) capacity is one of the most important parameters for setting overall turbine power output, for stage matching, and for understanding turbine performance. Accurate capacity prediction ...