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Examining Undulation and Wake Interaction using Statistical Moments in Wake Profile

机译:使用唤醒轮廓中的统计矩检查波动和唤醒交互

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Studies have shown that undulating propulsion improves efficiency in unsteady wakes. In this work, the goal is to refine the understanding of thrust generation and low energy expenditure in these unsteady regimes by examining the wake profiles of undulating swimmers. The work is based on using Computational Fluid Dynamics (CFD) to evaluate the unsteady fluid interactions associated with undulation-based propulsion. Numerical accuracy is established using benchmark experiments and refinement studies. The model is then extended to study the wake profiles using shape factors and explore correlating these factors to the mechanical power required for self propulsion. By correlating shape factors to power, we discuss their application to evaluate undulating performance.
机译:研究表明,起伏推进提高了不稳定醒来的效率。在这项工作中,目标是通过检查起伏的游泳者的唤醒轮廓来优化这些不稳定的制度中的推力生成和低能量消耗。该作品基于使用计算流体动力学(CFD)来评估与基于波状的推进相关的不稳定流体相互作用。使用基准实验和细化研究建立了数值准确性。然后将该模型扩展以研究使用形状因子来研究唤醒型材,并探索这些因素与自推进所需的机械功率相关联。通过将形状因素与电力相关,我们讨论其应用以评估起伏性能。

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