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RISInfluence of Boundary Layer Skew on the Tip Leakage Vortex of an Axial Compressor Stator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For an axial compressor stator with tip gap, the boundary layer (BL) in the hub endwall region has a significant influence on the development and progression of the tip leakage vortex. Herein, the so-called BL skew, which ...
Investigation of Unsteady Pressure Fluctuations in a Simplified Steam Turbine Control Valve
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steam turbines are among the most important systems in commercial and industrial power conversion. As the amount of renewable energies increases, power plants formerly operated at steady-state base load are now experiencing ...
Experimental Study on the Influence of Film Cooling Hole Extraction on Heat Transfer and Flow Field in Internal Ribbed Cooling Channels of Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Film cooling and internal passage cooling play a fundamental role in turbine blade cooling. As the cooling holes are fed by the internal crossflow, interaction of these both cooling strategies is implicated. The influence ...
Roughness Investigations on In-Service High-Pressure Compressor Blades—Part I: An Automated Process for High-Fidelity Roughness Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The two-part publication deals with roughness investigations on in-service high-pressure compressor (HPC) blades, both in terms of measurements and simulations. In this article (Part I), an automated process for performing ...
Study of Relative Endwall Motion Effects in a Compressor Cascade Through Direct Numerical Simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Linear cascades are commonly used as surrogate geometries when performing fundamental studies of turbomachinery blading. Several effects are not accounted for in linear cascades, such as the relative motion between blade ...
An Experimental Verification of a New Design for Cantilevered Stators With Large Hub Clearances
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Proportionally large relative radial clearances can be found within the rear stages of multistage axial compressors of gas turbines and aero engines, with significant impact on their efficiency. A new threedimensional ...
Periodic Unsteady Tip Clearance Vortex Development in a Low-Speed Axial Research Compressor at Different Tip Clearances
Publisher: The American Society of Mechanical Engineers (ASME)
Probabilistic Finite Element Analysis of Cooled High-Pressure Turbine Blades—Part A: Holistic Description of Manufacturing Variability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern high-pressure turbine (HPT) blade design stands out due to its high complexity comprising three-dimensional blade features, multipassage cooling system (MPCS), and film cooling to allow for progressive thermodynamic ...
Influence of Casing Groove on Rotating Instabilities in a Low-Speed Axial Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotating instability (RI) can be regarded as a pre-stall signal because such phenomena are usually detected when a compressor operates at a near-stall point. Since RI is closely relevant to aerodynamic, acoustic, and ...
A Methodology for a Coupled Structural–Computational Fluid Dynamics Analysis of Compressor Rotor Blades Subjected to Ice Impact With Uncertain Impactor Parameters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method for a coupled structural–computational fluid dynamics (CFD) analysis of a compressor rotor blade subjected to an ice impact scenario is investigated to assess the impact related blade deformations from a structural ...