Cavitation Nuclei: Experiments and Theory

Knud Aage Mørch

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The Swedish astrophysicist and Nobel Prize winner Hannes Alfven said: Theories come and go - the experiment is here forever. Often a theory, which we set up to describe an observed physical phenomenon, suffers from the lack of knowledge of decisive parameters, and therefore at best the theory becomes insufficient. Contrary, the experiment always reveals nature itself, though at prevailing experimental conditions. With essential parameters being out of control and even maybe unidentified, apparently similar experiments may deviate way beyond our expectations. However, these discrepancies offer us a chance to reflect on the character of the unknown parameters. In this way non-concordant experimental results may hold the key to the development of better theories - and to new experiments for the testing of their validity. Cavitation and cavitation nuclei are phenomena of that character.
Original languageEnglish
JournalJournal of Hydrodynamics
Volume21
Issue number2
Pages (from-to)176-189
ISSN1001-6058
DOIs
Publication statusPublished - Apr 2009

Keywords

  • cavitation nuclei
  • scanning tunneling microscopy
  • atomic force microscopy
  • gas bubbles
  • surface nano voids

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