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Self-Excited Second-Order Azimuthal Thermoacoustic Instabilities in an Annular Combustor With Oblique-Injecting Swirling Burners
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we experimentally investigate the thermoacoustic instability issue in an annular combustor with 16 oblique-injecting premixed swirling burners. It is demonstrated that there exist three dominant modes in a ...
Effects of Subgrid Scale Modeling on the Deterministic and Stochastic Turbulent Energetic Distribution in Large Eddy Simulations of a High Pressure Turbine Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study focuses on the enginerepresentative MT1 transonic highpressure turbine. Simulated by use of wallmodeled largeeddy simulations (LES) with three different subgrid scale (SGS) closures, mean pressure profiles across ...
Assessment of the Indirect Combustion Noise Generated in a Transonic High Pressure Turbine Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Indirect combustion noise, generated by the acceleration and distortion of entropy waves through the turbine stages, has been shown to be the dominant noise source of gas turbines at lowfrequencies and to impact the ...
Experimental Study on Single-Hole Injection of Kerosene into Pressurized Quiescent Environments
Publisher: American Society of Civil Engineers
Abstract: Experiments on kerosene spray through a single-hole nozzle are carried out under various ambient pressures ranging from 1.4 to 5.6 MPa. High-speed schlieren photography is used to capture the time-dependent images of the ...