Vortex Shedding in an In-line Tube Bundle with Large Tube Spacings

Ziada, Samir; Oengören, A.

doi:10.1006/jfls.1993.1039

Cited by 60 publications

(37 citation statements)

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“…This value was almost the same of the work of Zdravkovich and Stonebanks (1988), but higher than of the work of Ziada and Oengören (1993), which was 1%. Results of velocity measurements showed an uniform flow distribution in the gaps between the tubes.…”

Section: Preliminary Measurementssupporting

confidence: 62%

“…When tube spacing is made smaller (longitudinal P/D < 1.5), the jet instability becomes weaker, and it occurs at the upstream rows only. As in intermediate tube spacing, acoustic resonance in this case is also excited by the shear layer instability (Ziada and Oengören, 1993).…”

Section: Paper Accepted April 2009 Technical Editor: Francisco R Cmentioning

confidence: 82%

“…6 and 7 can be explained by the fact that in this longitudinal P/D range, between small and intermediate (Ziada and Oengören, 1993), the flow starts forming eddies after the second row, with an established regime after the third row, as observed in the interesting flow visualizations by Ziada et al (1989), and Ziada and Oengören (1992). Therefore, because the frequency of the disturbance remains unaltered, the wavelength of the disturbance is increased, due to the narrowing of the flow passage after the first row and the consequent acceleration of the flow.…”

Section: Channel With a Tube Bankmentioning

confidence: 97%

See 2 more Smart Citations

Experimental study of the propagation of a far-field disturbance in the turbulent flow through square array tube banks

Endres¹,

Möller²

2009

J. Braz. Soc. Mech. Sci. & Eng.

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Section: Preliminary Measurementssupporting

confidence: 62%

Section: Paper Accepted April 2009 Technical Editor: Francisco R Cmentioning

confidence: 82%

Section: Channel With a Tube Bankmentioning

confidence: 97%

See 1 more Smart Citation

Experimental study of the propagation of a far-field disturbance in the turbulent flow through square array tube banks

Endres¹,

Möller²

2009

J. Braz. Soc. Mech. Sci. & Eng.

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“…This lack of correlation between adjacent wakes was also confirmed by means of phase and coherence measurements. Further details of the flow structure inside bundles with large spacing ratios can be found in Oengoeren & Ziada (1993).…”

Section: In-line Arrays With Large Tube Spacingmentioning

confidence: 99%

Vorticity shedding and acoustic resonance in tube bundles

Ziada

2006

J. Braz. Soc. Mech. Sci. & Eng.

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“…Many studies have been published on the excitation mechanisms causing acoustic resonance in the tube banks in cross-flow [5][6][7][8]. Vortex excitation has been clearly shown to result from the formation of periodic vortices in the space between the tubes [7,8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Arrangement of Tube Banks on Acoustic Resonance

Hamakawa¹,

Nakamura²,

Asakura³

et al. 2012

OJFD

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In the present paper the attention is focused on effect of arrangement of tube banks on acoustic resonance which occurred in the two-dimensional model of boiler. We have examined the characteristics of vortex shedding and acoustic resonance generated from in-line and staggered tube banks. At the small tube pitch ratio in in-line tube banks, acoustic resonance of third and fourth mode in the transverse direction occurred. As the tube pitch ratio in the flow direction decreased, the vortex shedding frequency became broad-band. The alternative vortex shed from in-line tube banks. The multiple resonance modes were generated within the broad-band vortex shedding frequency. And the acoustic resonances of lower-order modes occurred at the higher gap velocity. On the other hand, at the small tube pitch ratio in staggered tube banks, acoustic resonance did not occurred, although the vortex shed at the resonance frequency in tube banks. The pressure drop at staggered tube banks was larger than that of in-line tube banks. The symmetric vortices were observed inside staggered tube banks at the small tube pitch ratio.

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Vortex Shedding in an In-line Tube Bundle with Large Tube Spacings

Cited by 60 publications

References 0 publications

Experimental study of the propagation of a far-field disturbance in the turbulent flow through square array tube banks

Experimental study of the propagation of a far-field disturbance in the turbulent flow through square array tube banks

Vorticity shedding and acoustic resonance in tube bundles

Effect of Arrangement of Tube Banks on Acoustic Resonance

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