Research Article
Multiphase CFD Simulation of Solid Propellant Combustion in a Small Gun Chamber
Table 3
Effect of weight charge on interior ballistic performance.
| | Computed values | | Solid propellant mass (g) | | Min. charge | | | | | Max. charge | Overcharge | | 0.190 | 0.201 | 0.212 | 0.223 | 0.234 | 0.245 | 0.256 |
| Maximum average chamber pressure (MPa) | 169.54 | 180.99 | 192.3 | 203.67 | 215.28 | 227.49 | 239.32 | Maximum average breech pressure (MPa) | 170.07 | 181.65 | 193.13 | 204.67 | 216.41 | 228.89 | 240.83 | Maximum average mouth case pressure (MPa) | 169.13 | 180.52 | 191.76 | 203.04 | 214.53 | 226.56 | 238.21 | Maximum average shot base pressure (MPa) | 168.5 | 179.91 | 191.1 | 202.26 | 213.6 | 225.49 | 237.14 | Shot muzzle velocity (m/s) | 284.76 | 295.35 | 305.09 | 314.48 | 323.54 | 332.72 | 341.2 | Shot exit time (ms) | 0.957 | 0.920 | 0.887 | 0.857 | 0.829 | 0.802 | 0.779 |
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