跨声速风洞槽壁干扰评估与修正技术的应用

doi:10.7527/S1000-6893.2017.21499

Abstract

Abstract: The slotted wall is increasingly adopted in advanced transonic wind tunnels. However, in China, understanding of its interference is relatively limited, and studies on assessment and correction of the interference have not been carried out. In this paper, characteristics of interference of the slotted wall with the standard model of advanced civil configuration are evaluated and corrected based on the homogeneous boundary condition of the ideal slot and the classical method. On the basis of accuracy verification, the difference and regularity of slotted wall interference in ETW and 2.4 m transonic wind tunnels are compared and analyzed. The results show that the corrected data are in good agreement with ETW reference data, and both corrections and interference factors coincide with ETW evaluations. Compared with traditional experimental techniques used for porous walls, the method proposed is clear, simple and fast, and can be conveniently applied to other wind tunnel with similar slotted walls. It can be used as an auxiliary means of wall signature method to improve the quality of domestic experimental data, and can provide reference for the design and debugging of domestic advanced transonic wind tunnels.

Key words: wall interference, ideal slotted wall, homogeneous boundary condition, classical method, standard model test

CLC Number:

V211.7

LIU Guangyuan, WEI Zhi, PENG Xin, CHEN Dehua, JIA Zhiliang. Application of slotted wall interference assessment and correction technique in transonic wind tunnel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(2): 121499-121499.

References

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Application of slotted wall interference assessment and correction technique in transonic wind tunnel

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