Determination of Viscosity Versus Pressure by Means of a Clearance Seal

Peter Christiansen, Niels Schmidt Hansen, Martin Thomas Overdahl Lund, Jon Spangenberg, Niels Oluf Bay*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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This paper describes the construction and testing of a simple, experimental tool setup that enables determination of the pressure–viscosity relationship for high viscosity oils. Comparing the determined pressure–viscosity relationship with a reference rheometer measuring the viscosity at ambient pressure yields reasonable agreement. The computed viscosity at elevated pressures was well represented by the Chu and Cameron model.
Original languageEnglish
Article numberTRIB-17-1253
JournalJournal of Tribology
Issue number3
Number of pages3
Publication statusPublished - 2018


  • Lubricants
  • Viscosity
  • Pressure–viscosity relationship
  • Clearance seal
  • Poiseuille flow

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