Cesnik, "Nonlinear Aeroelastic Anaylsis of Complete Aircraft in Subsonic Flow
," Journal of Aircraft 37, no.
Table 1: Analogous quantities of classical hydraulic analogy 2D gas flow Free Surface incompressible water flow Temperature ratio T/T0 Hydraulic depth ratio h/h0 Density ratio Hydraulic depth ratio h/h0 Pressure ratio P/P0 Sq of hydraulic depths ratio (h/h0)2 Sound Velocity a0 Wave Velocity _(gh) Mach number V/ a0 Froude number V/_(gh) Velocity ratio V/Vmax Velocity ratio V/ Vmax Subsonic flow
M<1 Streaming Water flow Fr<1 Supersonic flow M>1 Shooting Water Flow Fr>1 Compressible shock Hydraulic jump
Ryan Carelli, "Rocket Stability in Subsonic Flow
," third place.
However, the obtained pressure profiles of shock waves displayed nonequilibrium condition indicated by the thickness of the shock waves and the subsonic flow
for work described in their NASA research announcement proposal entitled "Dielectric Barrier Discharge Plasma Actuators with Novel Geometries for Subsonic Flow
Modification: Experimental Measurements with Development and Validation of a 2-D Fluid Model.
This requires the aerodynamics of the vehicle be characterized well into the subsonic flow
regime, which is difficult to predict experimentally as well as computationally.