Non-stationary compressible flow in ducts with varying cross-section

O. Igra, L. Wang, J. Falcovitz

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A comparative study of the interaction of shock wave or rarefaction wave with a converging duct separating long constant cross-section segments is presented. Quasi-one-dimensional computations are compared with fully two-dimensional computations. It is observed that in some cases the two-dimensional results approach the respective one-dimensional approximations over long times, while in other cases the two-dimensional computed flow is genuinely two-dimensional and cannot be reduced to a one-dimensional equivalent. In the latter cases, significant errors are incurred by analysing the flow using the quasi-onedimensional duct flow approximation.

Original languageEnglish
Pages (from-to)225-243
Number of pages19
JournalProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Issue number4
StatePublished - 1 Jan 1998


  • One-dimensional duct flow
  • Rarefaction wave in ducts
  • Shock wave in ducts
  • Two-dimensional duct flow

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering


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