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RISAerodynamic Optimization of High Pressure Turbines for Lean Burn Combustion System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern leanburn combustors make use of high flow swirl to maintain flame stability. The swirling flow can persist downstream of the turbine first vane, changing the loading on the rotor, leading to a reduction in efficiency. ...
Affordable Uncertainty Quantification for Industrial Problems: Application to Aero-Engine Fans
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Uncertainty quantification (UQ) is an increasingly important area of research. As components and systems become more efficient and optimized, the impact of uncertain parameters is likely to become critical. It is fundamental ...
Exploring Topology Optimization for High Pressure Turbine Blade Tips
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents the aerodynamic topology optimization of high-pressure turbine rotor blade tips. Before carrying out the topology optimization on the blade tip, some initial tip design studies were carried out. A winglet ...
Novel Compressor Blade Shaping Through a Free-Form Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes the use of the free-form-deformation (FFD) parameterization method to create a novel blade shape for a highly loaded, transonic axial compressor. The novel geometry makes use of precompression (via an ...
Automatic Design Optimization of Profiled Endwalls Including Real Geometrical Effects to Minimize Turbine Secondary Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a novel optimization methodology based on both adjoint sensitivity analysis and trust-based dynamic response surface modeling to improve the performance of a modern turbine of a large civil aero-engine ...
The Impact of Realistic Casing Geometries and Clearances on Fan Blade Tip Aerodynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During engine operation, fan casing abradable liners are worn by the blade tip, resulting in the formation of trenches. This paper describes the influence of these trenches on the fan blade tip aerodynamics. A detailed ...
Using Shock Control Bumps to Improve Transonic Fan/Compressor Blade Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Shock control bumps can help to delay and weaken shocks, reducing loss generation and shock-induced separation and delaying stall inception for transonic turbomachinery components. The use of shock control bumps on ...
High-Fidelity Computational Fluid Dynamics Analysis of In-Serviced Shrouded High-Pressure Turbine Rotor Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In-service deterioration can lead to undesired shape variations on high-pressure turbine rotor blades. This can have a significant impact on efficiency, power generation, and component life. Loss of power production from ...
Using Shock Control Bumps to Improve Transonic Fan/Compressor Blade Performance
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Shock control bumps can help to delay and weaken shocks, reducing loss generation and shock-induced separation and delaying stall inception for transonic turbomachinery components. The use of shock control bumps on ...
Automatic Design Optimization of a Transonic Compressor Rotor for Improving Aeroacoustic and Aerodynamic Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multidisciplinary design optimization of transonic rotors, especially focusing on improving the aeroacoustic performance, has received little attention. This article employs an automatic design optimization approach to ...