Optimized hydrodynamic interactions in phalanx school arrays of accelerated thunniform swimmers
Optimized hydrodynamic interactions in phalanx school arrays of accelerated thunniform swimmers
复制标题
DOI：
10.1088/1402-4896/acb859
复制
发表时间：
2023-02
期刊：
影响因子：
2.9
通讯作者：
Ahmed Abouhussein;Yulia V. Peet
中科院分区：
文献类型：
--
作者：
Ahmed Abouhussein;Yulia V. Peet
通过将高保真计算流体力学(CFD)模拟和基于无梯度代理的优化算法相结合的计算框架，研究了加速方阵鱼阵中的最优鱼阵流体动力学。根据鱼群在加速运动过程中的有效推进，研究了与方阵鱼群相关的关键参数，如中线运动学、分离距离和相位同步。结果表明，加速方阵运动员的最佳中线运动学与加速单人游泳运动员相似。方阵的最佳间隔距离为2L左右(L为运动员的全长)。此外，与相位同步相比，间隔距离对学校的推进效率有更强的影响。
Optimal fish array hydrodynamics in accelerating phalanx schools are investigated through a computational framework which combines high fidelity Computational Fluid Dynamics (CFD) simulations with a gradient free surrogate-based optimization algorithm. Critical parameters relevant to a phalanx fish school, such as midline kinematics, separation distance and phase synchronization, are investigated in light of efficient propulsion during an accelerating fish motion. Results show that the optimal midline kinematics in accelerating phalanx schools resemble those of accelerating solitary swimmers. The optimal separation distance in a phalanx school for thunniform biologically-inspired swimmers is shown to be around 2L (where L is the swimmer’s total length). Furthermore, separation distance is shown to have a stronger effect, ceteris paribus, on the propulsion efficiency of a school when compared to phase synchronization.