Global skin friction diagnostics in separated flows using luminescent oil

Tianshu Liu, S. Woodiga, J. Montefort, K. J. Conn, Lixin Shen

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Quantitative skin friction diagnostics in complex separated flows is achieved by using a global luminescent oil-film skin-friction meter. This technique is based on the variational solution for the projected thin-oil-film equation on the image plane. Normalized skin friction fields are obtained in junction flows and flows over surface roughness elements, a double-delta wing, and a low-aspect-ratio rectangular wing. The results show the detailed topological structures of skin friction fields in these flows.

Original languageEnglish (US)
Pages (from-to)19-39
Number of pages21
JournalJournal of Flow Visualization and Image Processing
Issue number1
StatePublished - 2009


  • Image processing
  • Oil film
  • Separated flows
  • Skin friction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Computer Science Applications


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