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RISAffordable 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 ...
Balancing Configuration and Refinement in the Design of Two Spool Multistage Compression Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With limited resources, time spent refining a design is time not spent in selecting its optimal configuration. A multifidelity optimization scheme is applied to the configuration and refinement of a generic core engine ...
Physical Explanation of the Hysteresis in Wells Turbines: A Critical Reconsideration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The hysteretic behavior of Wells turbines is a wellrecognized phenomenon. As it appears at nondimensional frequencies orders of magnitude lower than the ones studied in rapidly pitching airfoils and wings, the cause is ...
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 ...
A Comparison of Different Approaches to Estimate the Efficiency of Wells Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Wells turbines are among the most interesting power takeoff devices used in oscillating water column (OWC) systems for the conversion of ocean-wave energy into electrical energy. Several configurations have been studied ...
Discussion: “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions” (Hu and Li, ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The work by Hu and Li (2018, “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions,” ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901) presents the numerical simulation of a high-solidity Wells ...
Discussion: “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions” (Hu and Li, ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901)
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The work by Hu and Li (2018, “Unsteady RANS Simulations of Wells Turbine Under Transient Flow Conditions,” ASME J. Offshore Mech. Arct. Eng., 140(1), p. 011901) presents the numerical simulation of a high-solidity Wells ...
A Critical Examination of the Hysteresis in Wells Turbines Using Computational Fluid Dynamics and Lumped Parameter Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The hysteretic behavior of oscillating water column (OWC)-installed Wells turbines has been known for decades. The common explanation invokes the presence of unsteady aerodynamics due to the continuously varying incidence ...
Extending Highly Loaded Axial Fan Operability Range Through Novel Blade Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tip clearance size has historically been considered to be the main factor affecting stability range in axial fan and compressors. This paper reveals that the stall characteristics are defined by the axial momentum flux ...