The contraction ratio can decrease beyond the Kantrowitz limit for high flight Mach numbers because the shock structure is formed of oblique shocks, thereby generating less loss than would a normal shock assumed at the throat.
Oblique shock waves, expansion waves and shock wave interactions are mainly considered.
Scramjet inlet incorporates oblique shock waves in various external and internal blends in order to achieve the desired combinations of compression and turning.
The inlet is designed in such a way that the oblique shock waves impinges at the cowl tip thereby increasing the mass flow rate (shock-on-lip condition).
The model design parameters are found by solving analytically using governing isentropic flow relations (1) (2) (3), oblique shock wave relations (4) (5) by following the shock-on-lip condition.
Among the titles are the periodic and quasi-periodic motion of point vortices, vortices in superconductors, vortex dipole coordinates on spheres, the interaction between longitudinal vortices and normal and oblique shocks
, and typical vortex phenomena in flow fields past space vehicles.
This relation is vital to an analysis of oblique shocks strength related to the Mach no and Deflection angle of the object.
Oblique Shock waves and normal shocks are very small regions in the gas where the gas properties change by a large amount.
The oblique shock wave formed over the concave corner of the ramp is shown in fig.
The strong disturbances cleave into an oblique shock wave to the free stream and oblique shock is stronger than the Mach wave (i.
The changes across the oblique shock wave are severe as p increases, the larger value of P will have the strong shock solution and the smaller value of p will have the weak shock solution.