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Using Computational Fluid Dynamics To Calculate The Stimulus To The Lateral Line Of A Fish In Still Water, Mark A. Rapo, Houshuo Jiang, Mark A. Grosenbaugh, Sheryl L. Coombs

Sheryl L. Coombs

This paper presents the first computational fluid dynamics (CFD) simulations of viscous flow due to a small sphere vibrating near a fish, a configuration that is frequently used for experiments on dipole source localization by the lateral line. Both two-dimensional (2-D) and three-dimensional (3-D) meshes were constructed, reproducing a previously published account of a mottled sculpin approaching an artificial prey. Both the fish-body geometry and the sphere vibration were explicitly included in the simulations. For comparison purposes, calculations using potential flow theory (PFT) of a 3-D dipole without a fish body being present were also performed. Comparisons between the 2-D …