並列タイトル等Numerical Analysis of Supersonic Gas-Particle Two-phase Flows Around a Sphere
タイトル(掲載誌)航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-10
一般注記This paper is concerned with unsteady supersonic gas-particle flows around a sphere. Impingement of a large particle-cloud on a shock layer of a dust-free gas in front of a sphere is numerically simulated. The effect of particles rebounded from the sphere is taken into account. It is shown that a temporal reverse flow region of the gas is induced near the body axis in the shock layer, which is responsible for the appearance of the gas flow region where the pressure gradient becomes negative along the surface. The flow region with the negative pressure gradient moves towards the downstream direction with time along the surface. These phenomena are consistent with previous experimental predictions. It is shown that the present results strongly support a flow model for the particle-induced flow field postulated in connection with "heating augmentation"found in the heat transfer measurements in hypersonic particle erosion environments. The particle behavior in such a flow is very complicated so that it is almost impossible to treat the particle-phase flow as an ordinary continuum medium. A few new findings are also described
資料番号: NALSP0010009
レポート番号: NAL SP-10
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43338&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ