Fiber-optic integrated aerodynamic three-hole vector probe for high-velocity flow field measurement

iScience

Qiang Liu¹  Sen Zhang²  Rui Li²  Ang Lee³  Wenwen Li³  Yueying Liu³  Wei Peng⁴  Fu Tian⁴  Ang Li⁴  Zhenguo Jing⁴ 

[1] Corresponding author;School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China;School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China;School of Physics, Dalian University of Technology, Dalian 116024, China;

关键词: Physics;    Fiber optics;    Nanotechnology;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: An integrated aerodynamic three-hole pressure probe (THP) based on a fiber-optic tip sensor array for high-velocity flow field vector measurement is developed and demonstrated in wind tunnel testing. The sensor array consisting of three miniature pressure fiber-tip sensors is integrated into three pressure conduits inside top area of the THP, which serves to mitigate pneumatic pressure loss and is expected for a more reliable analysis of flow characteristics. Fast real-time data acquisition is implemented by a compact self-developed multichannel white light interferometry (WLI) interrogator. Well-calibrated maps of the fiber-optic THP are developed in a subsonic free-jet wind tunnel to derive the velocity vectors in a yaw angular range of ±15° at Mach numbers of 0.2 Ma (∼70 m/s), 0.5 Ma (∼170 m/s), and 0.8 Ma (∼300 m/s) while related flow characteristics are analyzed. This work is desired to provide a potential candidate for turbomachinery experimental investigation in fluid mechanics community.

【 授权许可】

Unknown