Unsteady numerical simulation of the inlet with a bleed slot in oscillating flow(PDF)
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
- Issue:
- 2009年06期
- Page:
- 5-8
- Research Field:
- 研究与设计
- Publishing date:
Info
- Title:
- Unsteady numerical simulation of the inlet with a bleed slot in oscillating flow
- Author(s):
- Wang Mingkun; Dong Jinzhong; Hu Xueguang
- School of Jet Propulsion，Beijing Univ. of Aeronautics and Astronautics, Beijing 100191, China
- Keywords:
- -
- PACS:
- V211.48
- DOI:
- -
- Abstract:
- The aerodynamic characteristics of a 2-D supersonic inlet with a bleed slot are studied in this paper. By the adoption of the given unsteady boundary conditions, the inlet unsteady oscillating flow fields are stimulated, in which the motion is oscillating around the flight Mach number of 2.2 with the amplitude of 0.154. In comparison with the steady simulation results, it is showed that the unsteady flow fields are quite different from the steady ones. Under the conditions of unsteady flow, the inlet capacity changes with a periodicity and varies along a hysteresis loop whose shape is ellipse or similar to ellipse.
Last Update: 1900-01-01