Influence of water flow on pipe inspection

Rais Ahmad, Sourav Banerjee, Tribikram Kundu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

From various studies by different investigators it has been now well established that a number of cylindrical guided wave modes are sensitive to the pipe wall defects. Several investigations by these authors and other researchers showed that the strengths of the guided waves propagating through a pipe that is placed in air are reduced when the pipe wall defects are encountered. This reduction is expected because the pipe wall defects (gouge, dent, removed metal due to corrosion etc.) alter the pipe geometry, hampering the free propagation of guided wave modes. When water flows through the pipes, the guided wave technique becomes more challenging because the flowing water absorbs part of the propagating acoustic energy. Flowing water may also induce some standing modes. The propagating cylindrical guided wave modes become leaky modes in presence of the flowing water, in other words energy leaks into water. Therefore, the energy detected by a receiver, placed at a large distance from the transmitter, is reduced even for a defect free pipe. Further reduction in the signal strength occurs in presence of defects.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsT. Kundu
Pages285-294
Number of pages10
Volume5768
DOIs
StatePublished - 2005
EventHealth Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems IV - San Diego, CA, United States
Duration: Mar 7 2005Mar 9 2005

Other

OtherHealth Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems IV
CountryUnited States
CitySan Diego, CA
Period3/7/053/9/05

Fingerprint

Flow of water
water flow
inspection
Guided electromagnetic wave propagation
Inspection
Pipe
Defects
defects
Water
water
transmitters
energy
Transmitters
corrosion
receivers
Acoustics
Corrosion
propagation
acoustics
Geometry

Keywords

  • Damage Detection
  • Guided Waves
  • Pipe Inspection
  • Structural Health Monitoring
  • Ultrasonic signal

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ahmad, R., Banerjee, S., & Kundu, T. (2005). Influence of water flow on pipe inspection. In T. Kundu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5768, pp. 285-294). [33] https://doi.org/10.1117/12.599846

Influence of water flow on pipe inspection. / Ahmad, Rais; Banerjee, Sourav; Kundu, Tribikram.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / T. Kundu. Vol. 5768 2005. p. 285-294 33.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ahmad, R, Banerjee, S & Kundu, T 2005, Influence of water flow on pipe inspection. in T Kundu (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5768, 33, pp. 285-294, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems IV, San Diego, CA, United States, 3/7/05. https://doi.org/10.1117/12.599846
Ahmad R, Banerjee S, Kundu T. Influence of water flow on pipe inspection. In Kundu T, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5768. 2005. p. 285-294. 33 https://doi.org/10.1117/12.599846
Ahmad, Rais ; Banerjee, Sourav ; Kundu, Tribikram. / Influence of water flow on pipe inspection. Proceedings of SPIE - The International Society for Optical Engineering. editor / T. Kundu. Vol. 5768 2005. pp. 285-294
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