Characteristics of bioluminescent wake based on stimulated luminescence laboratory experiments

Based on the relative characteristics of stimulated bioluminescence and hydrodynamic flow, the experimental platform of stimulated bioluminescence in Couette flow was built. The hydrodynamic elements stimulated bioluminescence were analysised. The threshold of shear stress for stimulated bioluminescence of Lingulodinium polyedrum is 0.1 N/m2. And bioluminescence emission is the function of shear stress and increases with it when the shear stress exceeds the threshold. The shear stress distributions of submarine were simulated by FLUENT software. The results of calculation illustrate that the shear stress decreases with the increased length of wake of submarine and it can be decreased as the oscillation of sine wave in the near area. The shear stress of wake decreases rapidly and widely wit