Imaging the transient boundary layer on a free rotating disc

Ann N Y Acad Sci. 2002 Oct:972:67-72. doi: 10.1111/j.1749-6632.2002.tb04554.x.


This report presents a visual study of the transition process of the laminar boundary layer (BL) in a turbulent BL on a free rotating disc. The imaging is based on an experimental investigation that aimed to analyze the structure of the BL by relating it to the ratio between turbulent energy and vortex energy, the critical and the transient Reynolds numbers (Re), the vortex numbers and their dependence on Re, and on the distance from the rotating disc.

MeSH terms

  • Fourier Analysis
  • Image Processing, Computer-Assisted*
  • Kinetics
  • Models, Chemical
  • Pressure
  • Rotation