Oblique shocks and expansion fans [Aerodynamics #19] 

In this video we continue our exploration of shocks by moving on to Oblique Shocks and Expansion Fans. Oblique shocks occur when the flow angles inwards which creates a shock angled to the flow. They are essentially the same as Normal Shocks, though we only worry about the normal component of velocity passing through the shock. Expansion fans are different, they have thickness to them and the changes to the flow are gradual. They occur when the flow opens, but in this case velocity increases and not decreases, as with normal/oblique shocks. We also discuss the forces on the body to the shock.
Free downloadable notes (PDF with white background) can be found at my website: sites.udel.edu/vanburen/educa...