Evaluation of perfect and imperfect-gas interferograms by computer

G. Ben-Dor, B. T. Whitten, I. I. Glass

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


A digital method of evaluating interferograms was developed in order to extract the maximum amount of information from interferograms of complex-flow phenomena in shock tubes such as ionizing-gas shock structures and their induced laminar boundary layers as well as real-gas nonstationary oblique-shock-wave diffractions. The method is based on a new approach to the interpretation of interferograms. In this approach the spatial coordinates (x, y) of the various lines of interference (fringes) on the interferogram are put into digital form, thereby readily making computer analysis possible. The new method is not only many times faster but it also removes most of the painstaking drudgery from evaluating interferograms and provides for greater accuracy and insight.

Original languageEnglish
Pages (from-to)77-91
Number of pages15
JournalInternational Journal of Heat and Fluid Flow
Issue number2
StatePublished - 1 Jan 1979

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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