Volumetric flow rates along the HFL describing horizontal flow moving towards the bell for a simulations with no pause between expansion and the subsequent contraction, b simulations with a constant 2 s pause between expansion and contraction, and c simulation with pause times generated by the Markov model. These plots indicate the horizontal flow from the left of the domain toward the model organism. Moreover, it is possible that the pulsations of the bell act as a suction pump drawing[…]