Abstract
Flame-spreading processes include gas filling stage and flame-spreading stage. First, the gas fills in the slots rapidly. Then, when chamber pressure reaches to the critical ignition pressure of slot, the flame-spreading stage begins. High-speed movement analysis systems were employed to acquire the gas filling measurements in the fin-slot region of a simulating test motor. The relation between gas filling phenomena and design parameters was studied. The interval of gas filling in the fin-slot region was found to correlate well with the pressurization rates and the width of slot, and the flow configuration of gas filling was found to correlate with the initial gas velocity and the submergence ratio of nozzle.
| Original language | English |
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| Pages (from-to) | 62-64, 69 |
| Journal | Tuijin Jishu/Journal of Propulsion Technology |
| Volume | 21 |
| Issue number | 6 |
| State | Published - Jun 2000 |