Abstract
A simulation experimental method was developed to investigate the ablation characteristic of the inhibitor in segment-propellant solid rocket motor. A new inhibitor erosion facility was designed to do experiment investigation. Three-dimensional two-phase numerical simulations were carried out to compare the thermo environment of this test facility with the full-scale solid rocket motor around the inhibitor. The numerical results show that the facility can be used to simulate the environment of low particle concentration and high velocity to investigate the inhibitor erosion. Then the experiment was carried out with this device, and the test results show that the inhibitor presents horse's hoof after erosion, which is coordinated with the distribution of particles; particles erosion plays an important role of inhibitor ablation, and particles concentration is an important factor of ablation characteristic of inhibitor; inhibitor erosion rate is similar with that of full-scale segment-propellant solid motor, which is 1.64 mm/s and 1.52 mm/s respectively; the erosion of inhibitor starts from the axial section and then develops to the radial section, namely the axial erosion rate is faster than radial erosion rate.
| Original language | English |
|---|---|
| Pages (from-to) | 334-337 |
| Number of pages | 4 |
| Journal | Guti Huojian Jishu/Journal of Solid Rocket Technology |
| Volume | 36 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2013 |
Keywords
- Erosion
- Inhibitor
- Segment-propellant
- Solid rocket motor