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RISParametric Investigation of the Flow-Sound Interaction Mechanism for Single Cylinders in Cross-Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow-excited acoustic resonance is a design concern in many industrial applications. If not treated, it may lead to excessive vibrational loads, which could subsequently result in premature structural failure of critical ...
Flow-Induced Acoustic Resonance of Finned Cylinders With Varying Fin Heights
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow-excited acoustic resonance phenomenon, which is instigated by periodic flow perturbation, leads to the generation of acute sound pressure. In this work, we investigated the characteristics of the flow-excited ...
Flow-Excited Acoustic Resonance of Isolated Cylinders in Cross-Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow-excited acoustic resonance of isolated cylinders in cross-flow is investigated experimentally where the effect of the cylinder(s) proximity to the acoustic particle velocity nodes of the cross-modes is presented ...
Fluidelastic Instability Modeling of Loosely Supported Multispan U Tubes in Nuclear Steam Generators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steam generators in nuclear power plants have experienced tube failures caused by flowinduced vibrations. Two excitation mechanisms are responsible for such failures; random turbulence excitation and fluidelastic instability. ...
Aeroacoustic Response of a Single Cylinder With Straight Circular Fins in Cross Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The phenomenon of sound generation has been investigated in some detail for the case of bare cylinders; however, the effect of adding fins to the cylinder on the flow–sound interaction mechanism is not yet fully understood. ...
Near-Wake Characteristics and Acoustic Resonance Excitation of Crimped Spirally Finned Cylinders in Cross-Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental investigation of the near-wake flow characteristics for isolated crimped spirally finned cylinders in cross-flow and its influence on the generated sound pressure during flow-excited ...
Characteristics of Acoustic Resonance Excitation by Flow Around Inline Cylinders
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Excitation of acoustic resonance by flow over tube bundles in heat exchangers can cause hazardous levels of acoustic pressure that may pose operational and environmental risks. The previous studies have indicated that ...
Applicability of the Equivalent Diameter Approach to Estimate Vortex Shedding Frequency and Acoustic Resonance Excitation From Different Finned Cylinders in Cross-Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article explores the applicability of utilizing different equivalent diameter (Deq) equations to estimate the vortex shedding frequency and onset of self-excited acoustic resonance for various types of finned cylinders. ...
The Flow-Structure Couplings of Fluidelastic Instability and the Effect of Frequency Detuning in Triangular Tube Bundles Subjected to a Two-Phase Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For decades, fluidelastic instability (FEI) has been known to cause dramatic mechanical failures in tube bundles. Therefore, it has been extensively studied to mitigate its catastrophic consequences. Most of these studies ...
Experimental Study on Damping Acoustic Pressure Pulsations in Pipeline Systems Using Helmholtz Resonators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Acoustic pressure pulsations can be problematic in industrial pipelines, especially when the excitation frequency matches an acoustic resonance frequency of the pipeline. The objective of this paper is to investigate the ...