Abstract
The Numerical method was utilized to simulate the working performance of the PDRE. Specific impulse of the PDRE with different nozzles (convergent, divergent, convergent-divergent) was studied. It was found that PDRE with convergent nozzle could obtain the highest specific impulse, which was 17.20% higher than the cases without any nozzle. Ambient pressure was reduced to simulate the operation of the PDRE under vacuum condition. The results and their analysis show preliminarily that the low ambient pressure is beneficial for improving the working performance of PDRE, and 0.5 atm is considered to be the optimum ambient pressure.
| Original language | English |
|---|---|
| Pages (from-to) | 440-445 |
| Number of pages | 6 |
| Journal | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University |
| Volume | 31 |
| Issue number | 3 |
| State | Published - Jun 2013 |
Keywords
- Ambient pressure
- Computational fluid dynamics
- Computer software
- Experiments
- Impulse response
- Nozzles
- Numerical methods
- Optimization
- Pressure
- Pulse detonation engines
- Pulse detonation rocket engine (PDRE)
- Specific impulse