CFD Analysis of Counter-Rotating Vane-Type Wing Vortex Generator for Regional Aircraft

Q2 Mathematics
Gunawan Wijiatmoko, Eflita Yohana, Putro Adi Nugroho, Mohammad Tauviqirrahman, Ivransa Zuhdi Pane
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Abstract

Vortex generator is a component that has a significant impact on aircraft performance. The function of the vortex generator is to create vortices that can optimize the aerodynamic performance of aircraft wings by avoiding air flow separation and increasing lift at high angle of attack. Vortex generator can provide increased lift during take-off and landing due to the increased wing angle of attack. Although the use of vortex generator can be carried out using an experimental approach, a computational fluid dynamic approach to determine the influence of geometric parameters and placement of the vortex generator needs to be carried out. The aim of this research is to determine the effect of parameters like placement on the wing chord, height of the boundary layer, length, shape, angle of incidence and distance between pairs on the lift and drag. The model used as a computational fluid dynamic calculation model is the Spalart Allmaras transient model. As a result, vortex generator does not always have a good effect on aerodynamics. All configurations have a negative influence on the lift and drag values, but the flow separation phenomenon can be reduced significantly. Of all the configurations, the best configuration is obtained by exhibiting an ogive shape, positioned at 13.8% of the chord length, set at a 13o angle of incidence. The vortex generator should have a height closely matching the boundary layer, with a length 6.5 times the height and a pair spacing of 6.7 times the height
支线飞机反旋转叶片式机翼涡流发生器的 CFD 分析
涡流发生器是对飞机性能有重大影响的部件。涡流发生器的功能是产生涡流,通过避免气流分离和增加大迎角时的升力来优化飞机机翼的气动性能。由于机翼攻角增大,涡流发生器可在飞机起飞和着陆时增加升力。虽然涡流发生器的使用可以通过实验方法进行,但还需要通过计算流体动力学方法来确定几何参数和涡流发生器位置的影响。本研究的目的是确定翼弦、边界层高度、长度、形状、入射角和对间距离等参数对升力和阻力的影响。计算流体动力学计算模型采用的是 Spalart Allmaras 瞬态模型。因此,涡流发生器并不总是对空气动力学产生良好的影响。所有配置都会对升力和阻力值产生负面影响,但流动分离现象会明显减少。在所有构型中,最佳构型是椭圆形,位于弦长的 13.8%,入射角为 13o。漩涡发生器的高度应与边界层高度密切配合,长度为高度的 6.5 倍,对间距为高度的 6.7 倍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CFD Letters
CFD Letters Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
3.40
自引率
0.00%
发文量
76
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