Aerodynamic Characteristics of Boundary Layer Wind Tunnel

在圣安东尼瀑布水力实验室建造的边界层风洞回路周围的流动质量将使用静态和停滞压力管，热线风速计，压力传感器和流动可视化设备进行研究。平均速度和湍流强度的分布将在一些横截面上得到，这样就可以定量地确定收缩、第一扩散器、第一和第二转角叶片、广角扩散器、风扇系统和湍流管理装置的性能。将利用流动显示设备和压力波动测量以及热线测量来研究流动模式和流动不稳定和分离的原因。明尼苏达大学的超级计算机设备将用于收缩和叶片弯曲的流动计算，并将结果与实验测量的性能进行比较。私家侦探完全有资格执行这个项目。标准奖助金的建议期限为一年，金额为80,514美元。

The flow quality around the circuit of the boundary layer wind tunnel being built at the St. Anthony Falls Hydraulic Laboratory will be investigated using static and stagnation pressure tubes, hot-wire anemometry, pressure transducers, and flow visualization equipment. Distributions of mean velocity and turbulence intensity will be obtained at a number of cross-sections so that the performance of the contraction, the first diffuser, the first and second corner turning vanes, the wide-angle diffuser, the fan system, and the turbulence management devices can be quantitatively ascertained. Flow patterns and causes of flow unsteadiness and separation will be studied using the flow visualization equipment and pressure fluctuation measurements together with hot-wire measurements. The supercomputer facilities at the University of Minnesota will be used for flow calculations for the contraction and vaned bents, and the results will be compared with the experimentally measured performance. The P.I. is highly qualified to carry out this project. A Standard Grant is recommended for one year only in the amount of $80,514.