PREDICTION OF CAVITATION EROSION. FIRST REPORT: IMPACT FORCE SPECTRA CAUSED BY CAVITATION BUBBLE COLLAPSE

The objective of this study is to develop a procedure to predict the cavitation erosion intensity. In this, it is necessary to presume impact force spectra caused by collapse of cavity bubbles. The authors measured the impact force spectra on a two-dimensional foil by piezoelectric pickups. The following conclusions were obtained: 1) It is desirable to develop smaller and more reliable sensors and calibration procedures. 2) Accumalative impact force spectra are inversely proportional to impact force to power n, where the value of n is about 2 if the impact force is low. The n increases with the impact force and attains around 4 in the region of high impact force. 3) Cavitation impact intensity is considered a good index of the erosion when appropriate threshold level is chosen.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 177, June 1995, p 81 [9 p, 18 ref, 13 fig]
  • Authors:
    • KONNO, A
    • KATO, H
  • Publication Date: 1995

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00717733
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM