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

Material type: 文書・図像類

Author: 綿貫, 忠晴ほか

Publisher: 航空宇宙技術研究所

Publication date: 1984-10

Material Format: Digital

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Note (General)：: Linear and weakly non-linear developments of Gortler vortices induced by instability of the boundary layer along a concave wall are governed by simult...

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Material Type: 文書・図像類
Title: 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
Author/Editor: 綿貫, 忠晴
伊藤, 信毅
WATANUKI, Tadaharu
ITO, Nobutake
Author Heading: 綿貫, 忠晴
伊藤, 信毅
WATANUKI, Tadaharu
ITO, Nobutake
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1984-10
Publication Date (W3CDTF): 1984-10
Alternative Title: 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
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-841
No. or year of volume/issue: 841
Volume: 841
Pages: 13-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): 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.
資料番号: NALTR0841000
レポート番号: NAL TR-841
Access Restrictions: 限定公開
Data Provider (Database): 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）
https://irdb.nii.ac.jp
Original Data Provider (Database): 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