Throat Mach Number

This Mach number is equal to the Mach number of the flow through the last shock in the inlet shock system. It is supposed to be computed from the system of shocks. However, in preliminary design, it is suggested to 'pick' a suitable number from the typical range:

Typical Range:

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0.4 - 0.9

More frequently,

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0.6 - 0.7

See Graphic