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Fish are able to adapt for the process of natural selection by developing a distinctive and remarkable ability of movement in the water.Lateral line plays an important role as the key component of fish perception system.Inspired from fish sensing their external flow,flow information featured by near-body pressure is of significance to enable underwater locomotion controllers with more adaptability and efficiency within varying environments.Both computational and experimental studies are implemented.Computational fluid dynamics(CFD)is employed into unveiling the bio-inspired fish swimming hydrodynamics.This paper using a simulation environment for understanding fish locomotion and hydrodynamic effects during the self-propulsion in flow fields.