1. Actually a Péclet number, but in the light of the analogy with viscous boundary layers discussed below we prefer “Reynolds number.”
2. A. M. Watts, private communication; based on the theory of the leading edge of a shock-induced boundary layer worked out independently by A. M. Watts, Ph.D. thesis, University of Sydney (1961);
3. Leading Edge of a Shock-Induced Boundary Layer
4. Hypersonic Viscous Flow over an Inclined Wedge
5. R. L. Chuan, Ph.D. thesis, California Institute of Technology (1953).