| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
|
|
タイトル |
凹曲面に沿う二次元境界層の安定計算(第一報)攪乱を支配する連立常微分方程式の数値解法 |
| 言語 |
|
|
言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| その他のタイトル（英） |
|
|
その他のタイトル |
Stability Calculations of the Two-Dimensional Boundary Layer along a Concave Wall Part 1. A Numerical Method of Solution for the Simultaneous Ordinary Differential Equations Governing Disturbances |
| 著者 |
綿貫, 忠晴
伊藤, 信毅
WATANUKI, Tadaharu
ITO, Nobutake
|
| 著者所属 |
|
|
|
航空宇宙技術研究所空気力学第二部 |
| 著者所属 |
|
|
|
航空宇宙技術研究所空気力学第二部 |
| 著者所属（英） |
|
|
|
en |
|
|
Second Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
|
|
|
en |
|
|
Second Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 出版者 |
|
|
出版者 |
航空宇宙技術研究所 |
| 出版者（英） |
|
|
出版者 |
National Aerospace Laboratory(NAL) |
| 書誌情報 |
航空宇宙技術研究所報告
en : Technical Report of National Aerospace Laboratory TR-841
巻 841,
p. 13,
発行日 1984-10
|
| 抄録（英） |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Linear and weakly non-linear developments of Gortler vortices induced by instability of the boundary layer along a concave wall are governed by simultaneous ordinary differential equations of second and fourth order. The eigenvalue problems in linear analysis are posed by homogeneous equations and boundary conditions, but in weakly non-linear theories several boundary-value problems of inhomogeneous equations have to be solved, some of which are singular in the sense that there exist solutions only if the forcing terms satisfy a kind of solvability condition. In this paper a numerical method of solution is presented for three kinds of such equation systems and is shown to give very accurate solutions. Also, a very fast method of iteration appropriate for calculation of eigenvalues is given. Tentative calculations are made to obtain the neutral stability curve of the Blasius velocity profile to Gortler vortices as well as the maximum-growth-rate curve, the former of which is in very good agreement with the most reliable result of earlier investigations. |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0389-4010 |
| 資料番号 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTR0841000 |
| レポート番号 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
レポート番号: NAL TR-841 |
naltr00841.pdf (1.0 MB)
