The unsteady flow physics of hypersonic inlet starting processes

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

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

9 被引用数 (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.

本文言語英語
ホスト出版物のタイトル18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
出版ステータス出版済み - 2012
外部発表はい
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月 24 20129月 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
国/地域フランス
CityTours
Period9/24/129/28/12

!!!All Science Journal Classification (ASJC) codes

  • 宇宙惑星科学
  • 航空宇宙工学
  • 制御およびシステム工学

フィンガープリント

「The unsteady flow physics of hypersonic inlet starting processes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル