In a problem similar to Problem 8.2, \(\theta_{1}\) is unknown, but \(\theta_{2}=15.90^{\circ}\) and \(\theta_{3}=82.25^{\circ}\). Can you determine the initial Mach number?

Data in Problem 8.2,

A Schleiren photo of the flow around a corner reveals the edges of the expansion fan to be indicated by the angles shown in Figure P8.2. Assume that \(\gamma=1.4\).
(a) Determine the Mach number before and after the corner.
(b) Through what angle was the flow turned, and what is the angle of the expansion fan \(\left(\theta_{3}\right)\) ?

Transcribed Image Text:

0 =? M 0 = 142.7 0-19.2 M Figure P8.2