Engineering Research Equipment: Purchase of Phase Doppler Anemometer System for Cavitation Research and other Two Phase Flow Studies

摘要Roger Arndt CTS-9411646 明尼苏达大学圣安东尼福尔斯水力实验室将购买一个相位多普勒风速计系统（PDA），用于广泛的流体力学研究。 PDA系统对于进一步开展空化研究是必不可少的，也将提高流体力学、河流力学、浊流、气溶胶、空气中颗粒运动和曝气的研究能力。 该系统用于分析含有气泡、液滴或颗粒的两相流，以测量颗粒的尺寸、速度和体积流量。 该系统还将用于取代现有的（1983年购买的）二维激光多普勒风速计，用于单相湍流测量。 该系统还将用于高速水洞、涡轮机试验台和美国国家科学基金会赞助的大气流动模拟风洞。 ***

ABSTRACT Roger Arndt CTS-9411646 The St. Anthony Falls Hydraulic Laboratory of the University of Minnesota will purchase a Phase Doppler Anemometer System (PDA) for use in a broad range of fluid mechanics research. The PDA system is essential for further work in cavitation, and will also enhance the capabilities for research in fluid mechanics, river mechanics, turbidity currents, aerosols, airborne particle motion, and aeration. The system is designed for analysis of two phase flows containing bubbles, droplets or particles for measruements of particle size, velocity and volumn flux. The system will also be used to replace the existing (purchased in 1983) 2D Laser Doppler Anemometer for single phase turbulence measurements. This system will also be used in the high speed water tunnel, turbine test stand and the NSF sponsored wind tunnel for atmospheric flow simulation. ***