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为了研究湍流模型对增升装置气动特性计算的影响,分别采用了4种湍流模型对某民用飞机带增升装置翼身组合体构型进行了计算流体力学(CFD)数值模拟,并且将计算结果与风洞实验结果进行比较和分析。计算结果表明,不同湍流模型计算结果有所差异。在线性段,SST、Omega雷诺应力、BSL雷诺应力3种湍流模型计算结果较为接近,与实验结果符合的更好,计算阻力与实验值相比误差在6%以内,而Omega雷诺应力模型计算结果与实验结果相比差异较大。此外,这4种湍流模型对失速迎角、最大升力系数的预测也存在不小的差异。
In order to study the influence of turbulence model on the aerodynamic characteristics of the lifting device, four kinds of turbulence models were used to simulate the CFD of the wing structure of a civil aircraft with a lifting device. The numerical results of the computational fluid dynamics And wind tunnel experimental results were compared and analyzed. The calculation results show that the results of different turbulence models are different. In the linear section, the results of the three turbulence models of SST, Omega Reynolds stress and BSL Reynolds stress are close to each other and are in good agreement with the experimental results. The calculated error of the calculated resistance is less than 6% compared with the experimental value, while the calculation results of the Omega Reynolds stress model Compared with the experimental results vary greatly. In addition, these four kinds of turbulence model for stalled angle of attack, the maximum lift coefficient prediction there is not a small difference.