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Flow Inhomogeneities in a Realistic Aeronautical Gas-Turbine Combustor: Formation, Evolution, and Indirect Noise
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Indirect noise generated by the acceleration of combustion inhomogeneities is an important aspect in the design of aero-engines because of its impact on the overall noise emitted by an aircraft and the possible contribution ...
The Potential of a Multifidelity Approach to Gas Turbine Combustor Design Optimization
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The desire to reduce gas turbine emissions drives the use of design optimization approaches within the combustor design process. However, the relative cost of combustion simulations can prohibit such optimizations from ...
Turbulent Flame Shape Switching at Conditions Relevant for Gas Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical investigation is conducted to shed light on the reasons leading to different flame configurations in gas turbine (GT) combustion chambers of aeronautical interest. Large eddy simulations (LES) with a flamelet-based ...
Impact of a Cooled Cooling Air System on the External Aerodynamics of a Gas Turbine Combustion System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To manage the increasing turbine temperatures of future gas turbines a cooled cooling air system has been proposed. In such a system some of the compressor efflux is diverted for additional cooling in a heat exchanger (HX) ...
Investigation of Flame Structure and Soot Formation in a Single Sector Model Combustor Using Experiments and Numerical Simulations Based on the Large Eddy Simulation/Conditional Moment Closure Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, a single sector lean burn model combustor operating in pilot only mode has been investigated using both experiments and computations with the main objective of analyzing the flame structure and soot formation ...
Isothermal Combustor Prediffuser and Fuel Injector Feed Arm Design Optimization Using the prometheus Design System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The prometheus combustor design system aims to reduce the complexity of evaluating combustor designs by automatically defining preprocessing, simulation, and postprocessing tasks based on the automatic identification of ...