The unsteady flow physics of hypersonic inlet starting processes

A. L. Grainger, R. R. Boyce, S. C. Tirtey, Hideaki Ogawa, G. Paniagua, S. Paris

研究成果: 著書/レポートタイプへの貢献会議での発言

4 引用 (Scopus)

抄録

A 2D numerical investigation was undertaken utilising transient, time-accurate, RANS computational fluid dynamics, with the aim of investigating the influence of viscous and unsteady effects when attempting to start a hypersonic scramjet inlet. A variable geometry inlet starting mechanism incorporating sliding doors was utilised, with the two doors initially extending upstream from the scramjet leading edge. After establishing a steady-state solution, the doors were retracted up and over the inlet and the resulting flow field captured. A started flow regime was achieved only when retracting the doors at such a speed (0.1ms total retraction time) that at no point could quasi-steady Kantrowitz assumptions be applied to the internal flow field. Viscous effects were seen to play a significant role in the inlet starting process, with unstart being obtained earlier for lower Reynolds number conditions. Shockwave boundary layer interactions (SWBLI) were found to be the key driver behind inlet unstart.

元の言語英語
ホスト出版物のタイトル18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
出版物ステータス出版済み - 12 1 2012
イベント18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 - Tours, フランス
継続期間: 9 24 20129 28 2012

出版物シリーズ

名前18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012

会議

会議18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
フランス
Tours
期間9/24/129/28/12

Fingerprint

hypersonic inlets
Hypersonic inlets
unsteady flow
Unsteady flow
flow field
physics
Physics
supersonic combustion ramjet engines
computational fluid dynamics
Reynolds number
sliding
Flow fields
flow distribution
boundary layer
geometry
internal flow
hypersonics
low Reynolds number
leading edges
upstream

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

これを引用

Grainger, A. L., Boyce, R. R., Tirtey, S. C., Ogawa, H., Paniagua, G., & Paris, S. (2012). The unsteady flow physics of hypersonic inlet starting processes. : 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).

The unsteady flow physics of hypersonic inlet starting processes. / Grainger, A. L.; Boyce, R. R.; Tirtey, S. C.; Ogawa, Hideaki; Paniagua, G.; Paris, S.

18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012. 2012. (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).

研究成果: 著書/レポートタイプへの貢献会議での発言

Grainger, AL, Boyce, RR, Tirtey, SC, Ogawa, H, Paniagua, G & Paris, S 2012, The unsteady flow physics of hypersonic inlet starting processes. : 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012, 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012, Tours, フランス, 9/24/12.
Grainger AL, Boyce RR, Tirtey SC, Ogawa H, Paniagua G, Paris S. The unsteady flow physics of hypersonic inlet starting processes. : 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012. 2012. (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).
Grainger, A. L. ; Boyce, R. R. ; Tirtey, S. C. ; Ogawa, Hideaki ; Paniagua, G. ; Paris, S. / The unsteady flow physics of hypersonic inlet starting processes. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012. 2012. (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).
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