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RISLoss Reduction Using Riblets on a Supersonic Through-Flow Fan Blade Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental and computational study to determine the effects of riblets on the performance of the Supersonic Throughflow Fan (STF) cascade blades was performed. The cascade was tested in ...
Performance and Flow Characteristics of an Optimized Supercritical Compressor Stator Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental and numerical study was performed on an optimized compressor stator cascade designed to operate efficiently at high inlet Mach numbers (M1) ranging from 0.83 to 0.93 (higher ...
Supersonic Through-Flow Fan Blade Cascade Studies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An investigation has been performed of the flow in a supersonic through-flow fan blade cascade. The blade shapes are those of the baseline supersonic through-flow fan (STF). Measurements were ...
Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations With Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The predictive capability of the lattice-Boltzmann very large eddy simulation (LBM-VLES) methodology was evaluated for industrial gas turbine exhaust diffuser-collector applications. The effort focused on evaluating the ...
Experimental Reduction of Transonic Fan Forced Response by Inlet Guide Vane Flow Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The main contributor to the high cycle fatigue of compressor blades is the response to aerodynamic forcing functions generated by an upstream row of stators or inlet guide vanes. Resonant ...
A Novel Transient Technique to Determine Recovery Temperature, Heat Transfer Coefficient, and Film Cooling Effectiveness Simultaneously in a Transonic Turbine Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The study presented in this article provides detailed description about a newly developed experimental technique to determine three key convective heat transfer parameters simultaneously in hot gas path of a modern high ...
A Sensitivity Study of Gas Turbine Exhaust Diffuser-Collector Performance at Various Inlet Swirl Angles and Strut Stagger Angles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes studies completed using a quarter-scaled rig to assess the impact of turbine exit swirl angle and strut stagger on a turbine exhaust system consisting of an integral diffuser-collector. Advanced testing ...
The Effects of Axisymmetric Convergent Contouring and Blowing Ratio on Endwall Film Cooling and Vane Pressure Side Surface Phantom Cooling Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To reduce the intensity of endwall secondary flow, the axisymmetric convergent contoured endwall is commonly designed in the first nozzle guide vane (NGV) passage of the real gas turbine engines. This endwall contouring ...
The Effect of Step Misalignment on Purge Flow Cooling of Nozzle Guide Vane at Transonic Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study describes a detailed investigation on the effects that upstream step misalignment and upstream purge film cooling have on the endwall heat transfer for first stage nozzle guide vanes (NGVs) in a gas turbine at ...
Endwall Heat Transfer and Cooling Performance of a Transonic Turbine Vane With Upstream Injection Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow fields near the turbine vane endwall region are very complicated due to the presence of high three-dimensional passage vortices and endwall secondary flows. This makes it challenging for the endwall to be effectively ...