论文标题
涡度限制和TVD应用于机翼尖端涡流，以进行准确的阻力预测
Vorticity Confinement and TVD Applied to Wing Tip Vortices for Accurate Drag Prediction
论文作者
论文摘要
使用涡度限制（VC）方法与总变化减少（TVD）方案，以减少可能的过度插入，并应用于机翼边缘脱落的尖端涡旋，以便使用远场积分预测诱导的阻力。最佳VC参数首先通过应用于2-D涡旋，然后用3-D机翼脱落的涡旋。使用唤醒综合技术后进行了后处理，以确定升力引起的阻力。 VC参数对飞行马赫数和攻击角度的依赖性进行了评估。对2D涡流进行了网格收敛研究，并针对由3-D机翼产生的诱导阻力进行了研究。 VC与TVD Minmod和可区分的通量限制器一起使用，以评估其对VC方法的影响。最后，将VC方法与Reynolds应力方程湍流模型相结合，并将结果与Tip Vortex演化的实验数据进行了比较。
The vorticity confinement (VC) method was used with total variation diminishing (TVD) schemes to reduce possible over-confinement and applied to tip vortices shed by edges of wings in order to predict induced drag using far-field integration. The optimal VC parameter was determined first by application to 2-D vortices and then to tip vortices shed by a 3-D wing. The 3-D inviscid simulations were post-processed using the wake-integral technique to determine lift-induced drag force. Dependence of the VC parameter on the flight Mach number and the angle of attack was evaluated. Grid convergence studies were conducted for 2-D vortices and for induced drag generated by 3-D wing. VC was used with TVD minmod and differentiable flux limiters to evaluate their effect on the VC method. Finally, the VC approach was combined with the Reynolds stress equation turbulence model, and the results were compared to experimental data of tip vortex evolution.
