Flow-induced vibrationof tube arrays with various pitch—to—diameter ratios

H. Tanaka, S. Takahara, K. Ohta

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


Tube arrays in cross flow start to vibrate abruptly when the flow reaches at a certain velocity. The threshold flow velocity depends upon the geometrical arrangement of tubes. It is very important for practical applications to understand the relations between the threshold velocity and pitch-to-diameter ratio of tube array. Unsteady fluid dynamic forces on a tube array with a pitch-to-diameter ratio of 2.0 were clarified experimentally and the characteristics of the threshold velocity were revealed by calculating the velocity with the unsteady forces. By comparing the threshold velocities of tube arrays of pitch-to-diameter ratio of 2.0 and 1.33, the characteristics of threshold velocity with respect to pitch-to-diameter ratio were clarified.

Original languageEnglish
Pages (from-to)168-174
Number of pages7
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Issue number3
Publication statusPublished - Aug 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Flow-induced vibrationof tube arrays with various pitch—to—diameter ratios'. Together they form a unique fingerprint.

Cite this