A soap film shock tube to study two-dimensional compressible flows

Chih-yung Wen, Y. M. Chen, S. K. Chang-Jian

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


A new experimental approach to the study of the two-dimensional compressible flow phenomena is presented. In this technique, a variety of compressible flows were generated by bursting plane vertical soap films. An aureole and a "shock wave" preceding the rim of the expanding hole were clearly observed using traditional high-speed flash photography and a fast line-scan charge coupled device (CCD) camera. The moving shock wave images obtained from the line-scan CCD camera were similar to the x-t diagrams in gas dynamics. The moving shock waves cause thickness jumps and induce supersonic flows. Photographs of the supersonic flows over a cylinder and a wedge are presented. The results suggest clearly the feasibility of the "soap film shock tube".
Original languageEnglish
Pages (from-to)19-25
Number of pages7
JournalExperiments in Fluids
Issue number1
Publication statusPublished - 1 Jan 2001
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes


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