Duri D, Baudet C, Charvin P, Virone J, Rousset B, Poncet J-M, Diribarne P
UJF-Grenoble 1, Grenoble-INP, CNRS, LEGI UMR 5519, Grenoble F-38041, France.
Rev Sci Instrum. 2011 Nov;82(11):115109. doi: 10.1063/1.3661127.
We present a new cryogenic wind tunnel facility developed to study the high Reynolds number developed classical or quantum turbulence in liquid (4)He. A stable inertial round jet flow with a Reynolds number of 4 × 10(6) can be sustained in both He I and He II down to a minimum temperature of 1.7 K. The circuit can be pressurized up to 3.5 × 10(5) Pa. The system has been designed to exploit the self-similar properties of the jet far field in order to adapt to the spatial resolution of the existing probes. Multiple and complementary sensors can be simultaneously installed to obtain spatial and time resolved measurements. The technical difficulties and design details are described and the system performance is presented.
我们展示了一种新开发的低温风洞设施，用于研究液氦（4）He中高雷诺数下的经典或量子湍流。在氦I和氦II中，雷诺数为4×10（6）的稳定惯性圆形射流可维持至最低温度1.7K。该回路可加压至3.5×10（5）Pa。该系统的设计利用了射流远场的自相似特性，以适应现有探头的空间分辨率。可以同时安装多个互补传感器，以获得空间和时间分辨测量结果。描述了技术难题和设计细节，并展示了系统性能。
