A study on the hydrodynamic performance of manta ray biomimetic glider under unconstrained six-DOF motion.

ABSTRACT: A manta ray biomimetic glider is designed and studied with both laboratory experiments and numerical simulations with a new dynamic update method called the motion-based zonal mesh update method (MBZMU method) to reveal its hydrodynamic performance. Regarding the experimental study, an ejection gliding experiment is conducted for qualitative verification, and a hydrostatic free-fall experiment is conducted to quantitatively verify the reliability of the corresponding numerical simulation. Regarding the numerical simulation, to reduce the trend of nose-up movement and to obtain a long lasting and stable gliding motion, a series of cases with the center of mass offset forward by different distances and different initial angles of attack have been calculated. The results show that the glider

SUBMITTER: Cai WH 

PROVIDER: S-EPMC7654792 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature