Original scientific paper

https://doi.org/10.17559/TV-20160525142932

Correction of model deformation effects for a supercritical wing in transonic wind tunnel

Dawei Liu ; State Key Laboratory of Aerodynamics Mailbox 101, Beichuan, Mianyang city, Sichuan province, PRC, 621000
Xin Xu ; State Key Laboratory of Aerodynamics Mailbox 101, Beichuan, Mianyang city, Sichuan province, PRC, 621000
Qiang Li ; State Key Laboratory of Aerodynamics Mailbox 101, Beichuan, Mianyang city, Sichuan province, PRC, 621000
Xin Peng ; State Key Laboratory of Aerodynamics Mailbox 101, Beichuan, Mianyang city, Sichuan province, PRC, 621000
Dehua Chen ; State Key Laboratory of Aerodynamics Mailbox 101, Beichuan, Mianyang city, Sichuan province, PRC, 621000

Abstract

This paper presents a method to correct test model deformation effects due to aerodynamic loads in transonic wind tunnel. Deformation for a supercritical wing test model was measured under variation of dynamic pressure in the European Transonic Wind tunnel (ETW) using the Stereo Pattern Tracking (SPT) system. Deformed model mesh was generated by the structure grids deformation technology developed in this paper, and numerical results of rigid and deformed models were achieved based on the RANS solver. Then, correction of model deformation was obtained by subtracting the computational longitudinal aerodynamic coefficients of original model from those of deformed one. Results indicated that a good correlation of experimental and numerical results of deformed model was achieved, validating the reliability of numerical method developed to simulate model deformation. It is also suggested that the method developed in this paper could be used to correct test model deformation for original wind tunnel data.

Keywords

correlation; ETW; SPT; structure grids deformation; test model deformation

Hrčak ID:

190159

URI

https://hrcak.srce.hr/190159

Publication date:

3.12.2017.

Article data in other languages: croatian

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