@inproceedings{oai:jaxa.repo.nii.ac.jp:00036941,
 author = {坂上, 昇史 and 西岡, 通男 and Sakaue, Shoji and Nishioka, Michio},
 book = {航空宇宙技術研究所特別資料, Special Publication of National Aerospace Laboratory},
 month = {Sep},
 note = {28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th), 28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th), 直接シミュレーションと線形安定性解析により、平板と圧縮斜面の組合せを過ぎる超音速境界層流の安定性とTollmien-Schlichting波の挙動について研究を行った。マッハ数2.2で、上流境界条件として2次元の周期的擾乱を導入し、TVD(全変動減少)スキームを用いて2次元ナビエ・ストークス方程式を直接解き、境界層応答を調べた。境界層剥離を含む斜面コーナーの傾斜角領域での計算結果を示した。その結果、いわゆる一般化変曲点におけるρ(∂u/∂y)の増加に伴い、空間増幅率が斜面角増加に対応して増加することが分かった。, The stability of supersonic boundary layer flow past a flat plate/compression ramp combination and the behavior of Tollmien-Schlichting waves are investigated using direct simulation and linear stability analysis. At Mach number 2.2, the two-dimensional periodic disturbances are introduced into the flow as the upstream boundary conditions and the boundary layer responses are studied through directly solving the 2D Navier-Stokes equations using a TVD (Total Variation Diminishing) scheme. Results are presented for a range of corner angles, including separated cases. It is found that the increase in rho x (partial derivative of u with respect to y) at the so-called generalized inflection point gives rise to the increase in the spatial amplification rate considerably as the ramp angle increases., 資料番号: AA0000867010, レポート番号: NAL SP-33},
 pages = {43--48},
 publisher = {航空宇宙技術研究所, National Aerospace Laboratory (NAL)},
 title = {超音速境界層におけるT-S波動の挙動と変曲点不安定},
 volume = {33},
 year = {1996}
}