Gas/fuel jet interfaces under high pressures and temperatures

Zachary Falgout, Mattias Rahm, David Sedarsky, Mark Linne

Research output: Contribution to journalArticlepeer-review


We report observations regarding changes in surface morphology for transient fuel jets as the ambient conditions approach the critical properties of pure fuels. Both ballistic imaging and ultrafast shadow imaging were applied to four fuels as they were injected through a single hole Diesel injector into a spray research chamber operated at three different ambient conditions that span the range of critical properties for the pure fuels that were studied. The results indicate that the pure fuels (butanol, dodecane, and hexadecane) tend to undergo a change in image structure that usually scales with estimated mixture critical properties. Commercially available Diesel fuel is not strongly affected, even at the highest pressure and temperature conditions.
Original languageEnglish
Pages (from-to)14-21
Early online date28 Nov 2015
Publication statusPublished - 15 Mar 2016


  • supercritical
  • diffusive mixing


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