Far-field hydrodynamic interaction in a group of swimmers
Résumé
Three-dimensional schools of hydrodynamically axisymmetric swimmers self-propelling at a constant velocity are studied. We introduce a low-order model for the induced velocity based on the far-field approximation. We inquire if, by holding suitable relative positions in the three-dimensional space, the swimmers can reduce the overall energy consumption of the school in comparison with the same number of isolated individuals at the same velocity. We find a considerable (several per cent) energy saving achievable by chain formations. The benefit increases asymptotically with the number of individuals, towards a finite limit that is a function of the minimum allowed spacing between each pair of neighbours.
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Li et al. - 2023 - Far-field hydrodynamic interaction in a group of s.pdf (1.29 Mo)
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Origine : Publication financée par une institution
Licence : CC BY - Paternité
Licence : CC BY - Paternité