Abstract
In order to understand the influence of ambient pressure on aerospike nozzle base pressure, the implicit NND (non-oscillation, no free coefficients dissipative) scheme was employed to solve the 2-D laminar N-S equations. Aerospike nozzle flow fields under different CNPR(i.e. nozzle pressure ratio) without base secondary flow and with secondary flow of 1.4% mass flux rate were obtained. The result shows that with the increase of ambient pressure, base pressure also increases. But under closed wake, the increase is slow; under open wake, the increase is rapid and even the pressure fluctuates.
| Original language | English |
|---|---|
| Pages (from-to) | 663-667 |
| Number of pages | 5 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 29 |
| Issue number | 8 |
| Publication status | Published - Aug 2003 |
| Externally published | Yes |
Keywords
- Base pressure
- Numerical computation
- Plug nozzles
- Rocket engines
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