Research in Characteristics of Three-Dimensional Flow in Aerospace

本研究旨在用实验技术和分析/数值模拟的方法阐明航天三维流动的特点，并用一维/二维方法解决几个基本的、实用的、不可类比的航天流动问题。这也为未来飞机和航天器的研发做出了贡献。研究小组由来自日本各地大学和研究机构的23名研究人员组成。1.三维流动的基础研究(1)旋涡流动、剪切流动、射流、螺旋流、尾迹、边界层、分离流等。(2)高速流动、高温流动、稀薄流动。三维绕流特性(1)绕机翼和飞行器(2)绕航天器绕流3。三维流动测量方法的发展4。上述三年多来的研究成果已在与其他合作研究资助机构举行的联合研讨会(1992年2月3-4日，木川，Tochigi)以及相关研究机构之间的定期交流中得到了介绍。研讨会的回顾和评价表明，三维流动研究取得了重大进展。

This research is to clarify the characteristics of three-dimensional flow in aerospace with use of experimental technology and analysis/numerical simulation and to solve several fundamental and practicable aerospace flow problems without analogy by one/two-dimensional approach. These are also contributable to research and development of future aircraft and spacecraft.The research group is composed of 23 researchers from universities and research institution throughout Japan. Researches were conducted in the following items :1. Fundamental Researches on Three-Dimensional Flow(1) Vortex flow, Shear flow, Jet, Spiral flow, Wake, Boundary layer, Separated flow, etc.(2) High speed flow, High temperature flow, Rarefied flow2. Characteristics of Three-Dimensional Flow(1) Flow around wing and aircraft(2) Flow around spacecraft3. Development of Measuring methods in Three-Dimensional Flow4. Development of Analysis/Numerical Simulation in Three-Dimensional FlowThe results of the above researches over three years have been presented at the joint symposium held with other Grant-in-Aid Bodies for Co-operative Research Projects (February 3-4, 1992, Kinugawa, Tochigi) as well as regular communications between related research institutions. Reviews and evaluations in the symposium have revealed significant progress in three-dimensional flow research.