Schematic of a shock wave interaction with a sinusoidal perturbation.
Time-sequence of experimental images for , : (a1) initial condition, , (a2) , and (a3) . , : (b1) initial condition, , (b2) , and (b3) . Each image is approximately 25 cm wide.
Time-sequence of experimental images for , case: (a1) initial condition, , (a2) , and (a3) . , case: (b1) initial condition, , (b2) , and (b3) . Each image is approximately 25 cm wide.
Amplitude spectrum for initial conditions.
Numerical schlieren image of the experiment shown in Fig. 3(b2). Image labels are: (a) transmitted shock wave, (b) interface, (c) vortices on slip plane, and (d) transverse shock waves.
Amplitude as a function of time for all experiments. The mix gas is . (a) Dimensional plot, (b) nondimensional plot using the impulsive model. The same legend applies to both plots.
(a) Growth rate plot from Raptor numerical simulation (, ) showing the region of early time, constant-growth, linear region. (b) Diffusion corrected, nondimensional plot of amplitude as a function of time for every experimental scenario. Data markers are the same as those used in Fig. 6.
Gas pairs and shock strengths used in the parameter study. The seeded gas is given in parentheses next to the tracer material.
Parameters of the experimental study. The mix gas on a volume basis is .
Growth reduction factors for each Atwood number, Mach number combination. The mix gas on a volume basis is .
Article metrics loading...
Full text loading...