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Flow control of non-slender delta wings by leading-edge modifications
Fluid Dynamics Research ( IF 1.5 ) Pub Date : 2020-03-19 , DOI: 10.1088/1873-7005/ab67d8
Martin Rein , Felix Busse , Frank Edzards , Hartmut Haselmeyer , Gebhard Höhler , Lars Siegel

Different concepts for controlling a non-slender delta wing are considered and compared with each other. The concepts are based on geometrical modifications of the leading edges. The strategy aims at producing an asymmetric distribution of lift due to vortices on the left and right wing half and thus, for example, rolling moments to be used in controlling the model. The effectiveness of different approaches is determined in low-speed wind tunnel tests both by measuring forces and moments acting on the model and by investigating the flow field around the model by particle image velocimetry and oil-flow visualization of skin friction lines. Two approaches are pursued. One is based on static and dynamic actuators acting at the left leading-edge. The other uses different combinations of leading edge shapes on the two halves of the model. Finally, the effect of asymmetric boundary layer tripping is briefly considered.

中文翻译:

通过前沿修改来控制非细长三角翼的流量

考虑并比较了用于控制不细长三角翼的不同概念。这些概念基于前缘的几何修改。该策略的目的是由于左,右机翼半部的涡流而产生升力的不对称分布,因此,例如,在控制模型时要使用侧倾力矩。在低速风洞测试中,通过测量作用在模型上的力和力矩,以及通过颗粒图像测速和皮肤摩擦线的油流可视化研究模型周围的流场,可以确定不同方法的有效性。追求两种方法。一种基于作用在左前缘的静态和动态执行器。另一个在模型的两半上使用前缘形状的不同组合。最后,
更新日期:2020-03-19
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