包含支撑装置和机翼变形的CRM-WB构型气动特性数值模拟

doi:10.7527/S1000-6893.2017.121202

Abstract

Abstract:

Common Research Model (CRM) is the reference configuration selected by 4th-6th AIAA Drag Prediction Workshop (DPW).Statistical analyses of the numerical simulation results of aerodynamic characteristics from DPW IV and DPW V illustrate obvious difference between experimental and numerical data.To assess the influence of the support system and static aeroelastic deformation on the numerical simulation results of aerodynamic characteristics of CRM Wing-Body (CRM-WB) configuration,aerodynamic characteristics of CRM Wing-Body configuration with the Support system (CRM-WBS) are simulated with CFD method and Fluid-Structure Coupling (FSC) method.Compared with the CFD results of the CRM-WBS configuration without support system and the experimental data from the NASA Langley National Transonic Facility (NTF) wind tunnel,the CFD results of CRM-WBS configuration show that the support system can move the shock wave upward on the wing upper surface and decrease the lift coefficient,drag coefficient,and the nose-down pitching moment coefficient.The FSC numerical results of CRM-WBS configuration show that the static aeroelastic deformation mainly affects the shock wave position on the wing upper surface,decreases the negative pressure coefficient obviously before the shock wave on the outward part of the wing,and further decreases the lift coefficient,drag coefficient and nose-down pitching moment coefficient.Numerical simulation results of aerodynamic characteristics of CRM-WBS configuration and static aeroelastic deformation agree more with the experimental results.

Key words: CRM-WB configuration, support system, static aeroelastic deformation, aerodynamic characteristics, CFD, fluid-structure coupling

CLC Number:

V211.7

WANG Yuntao, SUN Yan, MENG Dehong, ZHANG Shujun, YANG Xiaochuan. Numerical simulation of aerodynamic characteristics of CRM-WB configuration with support system and wing deformation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(10): 121202-121202.

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Numerical simulation of aerodynamic characteristics of CRM-WB configuration with support system and wing deformation

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