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Fig. 7. Response of cells of Lingulodinium polyedrum injected at the
nozzle inlet at various radial positions for Re=2500. A radial
injection position of 1 is at the inlet wall (=Yin) while
a value of zero is at centerline. Symbols represent mean values ±
S.D. (A) Proportion of cells responding, based on approximately 7
cells injected s-1; cells injected at
<0.6Yin did not respond. All stimulated cells were
located downstream within the thin wall boundary layer. (B) Relative fluid
shear stress and acceleration at the position of stimulated cells
(X0, Y0).