@inproceedings{oai:jaxa.repo.nii.ac.jp:00006444, author = {渡辺, 大輔 and 前川, 博 and 松尾, 裕一 and Watanabe, Daisuke and Maekawa, Hiroshi and Matsuo, Yuichi}, book = {宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2004論文集, JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2004}, month = {Mar}, note = {The three-dimensional time dependent compressible Navier-Stokes equations are numerically solved to study acoustic emission mechanism in a supersonic plane jet at high convective Mach numbers using high-order compact upwind schemes. Numerical results for the convective Mach number Mc = 1.17 are presented. Two different cases were investigated. The first case is the jet forced by the linear unstable modes. The second case is the jet flow forced randomly. The numerical results provide new physical insights into three-dimensional structures of a plane jet. Upstream disturbance conditions play an important role for the evolution of the downstream structure, such as development of shear layers and transition process in a jet. Growth of 3D-A1 mode is responsible for the A structure in a plane jet. The 2-D A1 mode, whose phase velocity is larger than the ambient speed of sound, is responsible for the Mach waves emission., 資料番号: AA0048469004, レポート番号: JAXA-SP-04-012}, pages = {27--32}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {不安定撹乱増幅による超音速平面ジェットの音波発生機構}, volume = {JAXA-SP-04-012}, year = {2005} }