Effects of mixing chamber structure on performance of zero-second-flow annular supersonic ejector(PDF)
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
- Issue:
- 2011年03期
- Page:
- 22-25
- Research Field:
- 研究与设计
- Publishing date:
Info
- Title:
- Effects of mixing chamber structure on performance of zero-second-flow annular supersonic ejector
- Author(s):
- FAN Wei1; LUAN Xi-ting2; HAN Xian-wei1; DENG Yong-feng1
- 1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China;
- Keywords:
- zero-second flow; supersonic ejector; mixing chamber; numerical simulation
- PACS:
- V434.13-34
- DOI:
- -
- Abstract:
- The influences of different mixing chamber structures on flowfield structure, vacuum in blind-cavity and total pressure at ejector outlet of the Zero-second-flow annular supersonic ejector is investigated by using two-dimensional axisymmetric Navier-Stokes equations and Spalart-Allmaras turbulent model . The characteristics of complex flowfield induced by both shock waves and the boundary layer are commendably simulated. The results show that the performance of Zero-second-flow annular supersonic ejector is remarkably promoted when a tube is added at frontend of the convergent mixing chamber.
Last Update: 1900-01-01