Leng Yan , Liu Zhongchen , Qian Zhansen

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018_810923

In the present paper, we present the design of the near-field sonic boon signature measurement system for AVIC ARI’s FL-60 wind tunnel. FL-60 is a trisonic, blowdown wind tunnel. The Mach number range is of 0.3 to 4.2, and the size of the test section is 1.2mX1.2m. For supersonic condition, a 2-D flexible nozzle with deformable contour flat is utilized to realize Mach number 1.3-4.0 continuously. Most of the design works are by virtue of CFD numerical analysis. In the CFD numerical simulation, the hybrid mesh with a combination of tetrahedral and hexahedral grid is utilized with mesh adaptive strategy to improve the grid resolution. A rail pressure measurement equipment is used in the present work to instead of the traditional pressure probe to improve the measurement efficiency drastically. Based on the conditions of the AVIC ARI’s FL-60 wind tunnel, the size and location of the pressure rail is optimized by the CFD simulation to get the best measured data. And also the effects of flow non-uniform of the tunnel on the sonic boom data are analyzed numerically. The numerical results show that the pressure rail can give satisfied near-field off-body pressure signatures for the present axisymmetric reference model and that will be validated by the reference model tests in the near future.

Download the full paper >

In Categories: High-Speed Aerodynamics and Aerothermodynamics, HiSST 2018, Hypersonic Aerodynamics, Testing and Evaluation
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.