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# QUANTITATIVE BIOLOGY SEMINAR

Mechanical Models of Fish and Krill Swimming

We will give an overview of a few swimming problems with biological

applications. First, we present a model of fish fin mechanics and solve a simple optimization problem for fish fins: what distributions of elastic

components maximize the stiffness of the fin? We then discuss the

resonant properties of flexible beams in fluid flows, as models for

fish fins and bodies during swimming. Finally, we will discuss a simple model of krill swimming which asks: how should the krill coordinate the motions of its appendages for fast and efficient swimming?