free-stream Mach number

free-stream Mach number

[′frē ‚strēm ′mäk ‚nəm·bər]
(aerospace engineering)
The Mach number of the total airframe (entire aircraft) as contrasted with the local Mach number of a section of the airframe.

free-stream Mach number (MFs)

free-stream Mach number (MFs)
The Mach number of a body measured in free stream, which is unaccelerated by the airfoil or the body's presence.
References in periodicals archive ?
Free-stream Mach number was taken as 0.75 for all computational runs while sideslip and angle of attack values vary between 0 and 5.
[U.sub.[infinity]] is free-stream velocity, [M.sub.[infinity]] is the free-stream Mach number, St is the Strouhal number, and m is the mode number of the cavity.
The tunnel was configured with a convergent-divergent nozzle that resulted in a free-stream Mach number of 2.4.