NASA共同研究模型翼身组合体数值模拟研究

采用结构网格求解器WiseManPlus软件,对DPW5提供的NASA共同研究模型CRM翼身组合体构型进行数值模拟研究.采用雷诺平均N-S方程,选择SA一方程湍流模型和SST两方程湍流模型,开展了网格收敛性分析及抖振分析计算研究,评估了该软件对此类民机构型的阻力预测能力.按照DPW5的要求,采用会议统一提供的基准结构网格进行计算分析,研究结果表明,计算的巡航设计点的阻力及大攻角下的气动力系数与试验值吻合较好,达到会议统计分析平均水平.计算结果表明,所采用的结构网格求解器WiseManPlus软件计算精度较高,适用于大型民机高速巡航及抖振现象的数值模拟研究.

Numerical Simulation Study of NASA Common Research Wing-body Model

In this paper, some numerical simulation studies on structured grids are performed on NASA common research wing-body model( CRM) for DPW5 with an in-house CFD solver,WiseManPlus,in which the Reynolds averaged Navier-Stokes equation coupled with SA one-equation and SST two-equa-tion turbulence models are solved. The grid convergence studies and buffet analysis calculations are per-formed so that the drag prediction capability is evaluated for such type configuration of civil aircraft. Fol-lowed the guideline of DPW5 workshop,the uniform benchmark structured grids provided by the workshop have been used in the studies. The results show that the drag at the designed cruise state and the aerody-namics force coefficients at the high angle of attack ( AoA) ,which reach the averaged level in statistics on the workshop,agree well with experimental data. It is concluded from the computational results that the CFD solver based on structured grid,WiseManPlus,has good accuracy,and is suitable for drag prediction and buffet simulation of large civil aircraft at high speed.