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首页> 外文期刊>The Aeronautical Journal >Comparative study on analytical and computational aerodynamic models for flapping wings MAVs
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Comparative study on analytical and computational aerodynamic models for flapping wings MAVs

机译：拍打翅膀MAVS分析与计算空气动力学模型的比较研究

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ABSTRACT A range of quasi-steady and unsteady aerodynamic models are used to predict the aerodynamic forces experienced by a flapping wing and a detailed comparison amongst these predictions in provided. The complexity of the models ranges from the analytical potential flow model to the computational Unsteady Vortex Lattice Method (UVLM), which allows one to describe the motion of the wake and account for its influence on the fluid loads. The novelty of this effort lies in a modification of the predicted forces as a generalisation of the leading edge suction analogy. This modification is introduced to account for the delayed stall mechanism due to leading edge flow separation. The model predictions are compared with two sets of independent experimental data and with computational fluid dynamics (CFD) simulation data available in the literature. It is found that both, the modified analytical model and the UVLM model can be used to describe the time history of the lift force, in some cases with better results than a high-fidelity CFD model. The models presented here constitute a useful basis for the aerodynamic design of bioinspired flapping-wings micro-air vehicles.
机译：摘要通过一系列准稳态和不稳定的空气动力学模型用于预测拍打翼所经历的空气动力以及提供的这些预测中的详细比较。模型的复杂性范围从分析潜在流模型到计算不稳定的涡流晶格方法（UVLM），这允许一个人描述唤醒的运动并考虑其对流体负荷的影响。这种努力的新颖性在于将预测力的修改为作为前缘抽吸类比的概括。引入该修改以考虑由于前沿流动分离引起的延迟失速机制。将模型预测与两组独立的实验数据和文献中可用的计算流体动力学（CFD）模拟数据进行比较。发现，两者，修改的分析模型和UVLM模型可用于描述提升力的时间历史，在一些比高保真CFD模型更好的结果。这里提出的模型构成了生物透明拍翼微空气车辆的空气动力学设计的有用基础。

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