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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (20): 628447-628447.doi: 10.7527/S1000-6893.2023.28447

• special column • Previous Articles    

Correlation between numerical simulation and wind tunnel test results of soft refueling

Xia HUANG, Fan LIU(), Zhitao LIU, Jinhua WU   

  1. China Aerodynamics Research and Development Center,Mianyang 621000,China
  • Received:2022-12-30 Revised:2023-01-17 Accepted:2023-02-16 Online:2023-03-07 Published:2023-03-03
  • Contact: Fan LIU E-mail:yangwenli200710@163.com

Abstract:

The aerodynamic stability characteristics of the refueling hose-drogue are the main factors affecting the success rate of soft refueling docking. Numerical simulation and wind tunnel tests are the main means to simulate the retraction-extension process of the hose-drogue, obtain the aerodynamic stability characteristics, optimize the design of refueling devices, and develop the refueling docking technology. Based on the aerodynamic modeling method and multi-body dynamics method of hose-drogues, the aerodynamic stability characteristics of the hose-drogue for 1∶1 and 1∶11 of a tanker model are simulated. Based on the dynamic similarity criterion and OptiTrack optical measurement method, the aerodynamic stability characteristics of the hose-drogue for the 1∶11 model are simulated by the wind tunnel test. The numerical simulation and wind tunnel test results of drogue vertical displacement under different working conditions are compared. The results show that the numerical simulation of the 1∶1 model is in good agreement with the wind tunnel test results, which verifies the correctness of the multi-body dynamics simulation method of the hose-drogue based on aerodynamic modeling. The normalization simulation results of drogue vertical displacement for the full size model and the 1∶11 model are clearly different in numerical value, and are consistent with the change of flow velocity, indicating that the size effect cannot be ignored. The current wind tunnel test technology of aerodynamic stability of scaled hose-drogues is not perfect, requiring further research on size effect correction.

Key words: hose-drogue, numerical simulation, wind tunnel test, aerodynamic stability characteristics, size effect

CLC Number: