Acoustic Resonance in the Inlet Scroll of a Turbo-Compressor

Ziada, Samir; Oengören, A.; Vogel, Alfred

doi:10.1006/jfls.2001.0421

Cited by 42 publications

(15 citation statements)

References 13 publications

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“…Typical examples of industrial equipments, which often experience flow-excited acoustic resonance, include tube bundles of heat exchangers and boiler plants (Fitzpatrick, 1986;Blevins and Bressler, 1993;Oengoeren and Ziada, 1998;Ziada, 2006), cascades of compressor blades (Parker and Pryce, 1974;Stoneman et al, 1988;Ziada et al, 2002), control valves (Ziada et al, 1989), and piping systems (Hourigan et al, 1990;Bruggeman et al, 1991;Ziada et al, 2006). The sound pressure generated by the resonant acoustic modes can be sufficiently high to cause structural failures, such as that reported recently for the steam dryer of BWR (NRC, 2003).…”

Section: Introductionmentioning

confidence: 93%

Flow-excited acoustic resonance of two side-by-side cylinders in cross-flow

Hanson

Mohany

Ziada

2009

Journal of Fluids and Structures

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Section: Introductionmentioning

confidence: 93%

Flow-excited acoustic resonance of two side-by-side cylinders in cross-flow

Hanson

Mohany

Ziada

2009

Journal of Fluids and Structures

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“…As a consequence, the effective aerodynamic thickness of the blades was higher than the geometric thickness. Ziada et al (2002) reported an acoustic resonance in the inlet of a 35 MW Sulzer multistage radial compressor in a natural gas storage station in Canada. The resonance had lead to mechanical vibration levels of the whole compressor resulting in a vibration at the compressor casing above the specified limit of vibration for this class of machines.…”

Section: Literature Reviewmentioning

confidence: 99%

Causes of Acoustic Resonance in a High-Speed Axial Compressor

Hellmich¹,

Seume

2008

Journal of Turbomachinery

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Nonharmonic acoustic resonance was detected in the static pressure and sound signals in a four-stage high-speed axial compressor when the compressor was operating close to the surge limit. Based on prior research reported in the literature and measurements of the resonance frequency, Mach number of the mean flow, and the axial and circumferential phase shifts of the pressure signal during resonance, it is shown that the acoustic resonance is an axial standing wave of a spinning acoustic mode with three periods around the circumference of the compressor. This phenomenon occurs only if the aerodynamic load in the compressor is high, because the mode needs a high circumferential Mach number for resonance conditions. Mathematics of existing analyses of acoustic resonances in turbomachinery complex and have therefore rarely resulted in published examples of good agreement with real engine data. The present paper provides suitable, physically based simplifications of the existing mathematical models which are applicable for modes with circumferential wavelengths of more than two blade pitches and resonance frequencies considerably higher than the rotor speed.

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“…Flow-excited acoustic resonance of ducts containing clusters of bluff bodies is a design concern in many engineering applications, such as tube bundles of heat exchangers and boilers (Blevins and Bressler, 1993;Oengo¨ren and Ziada, 1998), cascades of compressor blades (Parker and Pryce, 1974) and guide/turning vanes in ducts and radial diffusers (Ziada et al, 2002). When these resonances are excited, the resulting acoustic pressure may exceed the dynamic head of the mean flow.…”

Section: Introductionmentioning

confidence: 98%