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首页> 外文期刊>Bulletin of the American Physical Society >APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - Interaction of a Synthetic Jet Actuator with a Severely Separated Crossflow
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APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - Interaction of a Synthetic Jet Actuator with a Severely Separated Crossflow

机译：APS-流体动力学APS分部第70届年会-事件-合成射流致动器与严重分开的横流的相互作用

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A coordinated experimental/computational study of synthetic jet-based flow control on a vertical tail/rudder assembly has been carried out on a 1/19th scale model operating at 30 degree rudder deflection, 0 degree side slip, and 20m/s free-stream flow. Under these conditions a very strong span-wise separated flow develops over the rudder surface for a majority of its span. Twelve synthetic jets were distributed across the span of the vertical tail just upstream of the rudder hinge-line to determine their ability to reduce flow separation and thereby increase the side force production; to extend therudder effectiveness. Experiments were completed for the baseline case (i.e. no jets blowing) and for cases where 1, 6, and 12 jets were activated. RANS and DDES computations were completed to match these four experiments. While some experimental results for the same geometry have been previously reported, more detailed results concerning the experiments and their comparison to the DDES computations for the baseline and 1 jet active cases are reported here. Specifically, this effort focuses on the near-jet flow and the phase-averaged vortical structures produced by a single jet interacting with a severely separated, turbulent cross-flow.
机译：在1/19比例模型上进行了基于合成射流的垂直尾流/尾舵控制的协调实验/计算研究，该模型在30度的舵偏度，0度的侧滑和20m / s的自由流下运行流。在这些条件下，在舵面的大部分跨度上，会在舵面上形成非常强的翼展方向分离流。十二个合成射流分布在舵铰链线上游的垂直尾翼跨度上，以确定它们减小流分离从而增加侧向力产生的能力。延长方向舵的有效性。针对基准情况（即没有喷气喷射）以及激活了1、6和12个喷射的情况的实验已完成。 RANS和DDES计算已完成，以匹配这四个实验。虽然先前已经报告了相同几何形状的一些实验结果，但此处还报告了有关该实验的更详细结果，以及它们与基准线和1个喷射活动案例的DDES计算的比较。具体而言，这项工作集中在单喷流与严重分离的湍流交叉流相互作用的近喷流和相平均旋涡结构上。

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