Simulated and actual schlieren images show good agreement (time below graphics counts after detonation wave has reached the middle of the slot).
0 micro-seconds | 30 micro-seconds | ||
60 micro-seconds | 90 micro-seconds |
z=0.444m (overall distance 1.964m) | z=0.896m, (overall distance 2.416m) |
Distance 250mm | Distance 500mm | Distance 750mm |
In this simulation, the density in the unreacted state has been lowered such that simulated and experimentally measured pressure traces agree better for the early time of the simulation, but this leads to errors in the early phase of the venting process. The detonation velocity is the same as in Simulation 1.
The oscillations in the reflection process are no computational error, but occur because the detonation turned fully three-dimensional in the simulation (see Simulated schlieren images at x=0.0m, entire upper domain).
-- RalfDeiterding - 13 Feb 2006
I | Attachment | Size | Date | Who | Comment |
---|---|---|---|---|---|
SchlCutX2.mpg | 766.6 K | 03 Feb 2006 - 22:38 | RalfDeiterding | Schlieren plot movie at x=0 | |
SchlCutXa.mpg | 7892.5 K | 08 Feb 2006 - 20:43 | RalfDeiterding | Schlieren plot movie at x=0, full configuration, simulation 2 | |
SchlCutX2b.mpg | 3301.8 K | 13 Feb 2006 - 19:35 | RalfDeiterding | Schlieren plot movie at x=0, entire simulation | |
SchlCutXb.mpg | 8144.5 K | 13 Feb 2006 - 19:36 | RalfDeiterding | Schlieren plot movie at x=0, full configuration, entire simulation | |
SchlCutZb.mpg | 4739.2 K | 13 Feb 2006 - 19:36 | RalfDeiterding | Schlieren plot movie at z=0.444, full configuration, entire simulation |