CRM-WBPN风洞试验模型数值模拟

doi:10.7527/S1000-6893.2018.22402

Abstract

Abstract: Based on the Reynolds-Averaged Navier-Stokes(RANS) equations and the structured grid (point to point) technology, the effects of support system on the aerodynamic characteristics of CRM Wing/Body/Pylon/Nacelle (CRM-WBPN) configuration are studied by using TRIP 3.0 (Trisonic Platform version 3.0). A grid family, which includes a tiny, coarse, medium, and fine grid, is constructed, and grid convergence study is presented. The effect of support system on the drag increment between CRM-WBPN and CRM-WB model is discussed on lift coefficient 0.50. The influence of support system on the aerodynamic characteristics of CRM-WBPN is provided at different angles of attack. Compared with the experimental data from the NASA Langley National Transonic Facility (NTF) and the numerical results of the CRM-WB model, the present numerical results show that the support system has mild effect on the drag increment between WBPN and WB. The inclusion of support system into the computation model decreases the lift coefficient and drag coefficient, and increases the pitching moment coefficient. The numerical results of WBPNS model more closely match with the experimental results.

Key words: RANS equations, drag increment, CRM model, flow simulation, aerodynamic characteristics

CLC Number:

V211.7

MENG Dehong, LI Wei, WANG Yuntao, SUN Yan. Numerical simulation of CRM-WBPN wind tunnel test model[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(2): 522402-522402.

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Numerical simulation of CRM-WBPN wind tunnel test model

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