摘要
本文叙述了南京航空学院空气动力研究所ＮＨ－２低速风洞中以计算机为中心的空间流场测量、控制和处理系统的组成和特点，给出了系统配置图，对各子系统亦作了简要介绍。重点介绍了通过软件设计，使试验过程达到高度自动化和实时性；使测量的压力值处理后得到被测点的总压、动压和静压以及气流方向，并直观地提供了流场的流动特性。该系统为空间流场的定量测量提供了有力的手段。
An on-line data acquisition, control and processing system, which is centralized by computer, for flow field in NamingAeronautical Institute NH-2 low-speed wind tunnel is described inthis paper. The paper introduces the constitution and character of thesystem. A diagram of system configuration is shown. Every subsystemis introduced briefly. The software design and data processing areemphasized in this paper, and several examples are given. The systemsupplies a powerful means for flow field measurement in low speedwind tunnel.
关键词
流场
数据采集
数据处理
实时系统
flow visualization data acquisition on-line system data processing test technique flow field
