TY - GEN
T1 - Dynamical Modeling and Numerical Simulation of Water Discharge Process of Spherical Objects
AU - Zhong, Lin
AU - Dong, Jiawei
AU - Liu, Jiabin
AU - Wang, Wei
AU - Wu, Riyue
AU - Wang, Shuqi
AU - Zhang, Tao
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The process of an object leaping out of the water is very similar to the jumping process of an aquatic animal during prey or avoid predators. The study of the process of an object leaping out of the water is beneficial to the design of robots jumping out of water. In this work, the free jump of a sphere out of the water is successfully simulated based on the Computational Fluid Dynamics (CFD) software Fluent, with User-Defined Functions to control the motion of the sphere, the volume of Fluid model, dynamic meshing, and Detached Eddy Simulation. The velocity of the sphere at the water-air interface and the height of the sphere leaping out from the water surface obtained from the numerical simulation are compared with experimental results. The maximum error between the experimental and the simulated results is 2.28% in the water-discharge velocity and 2.65% in the leaping height from the water surface. In addition, this paper model the dynamics of the sphere during the water discharge process. The paper also analyses the free deformation of water surface, the water film rupture process on the surface of the sphere, the variation of fluid drag on the sphere, and the variation of the fluid velocity field during the free ascent of the sphere after acquiring an initial velocity of 2.81 m/s.
AB - The process of an object leaping out of the water is very similar to the jumping process of an aquatic animal during prey or avoid predators. The study of the process of an object leaping out of the water is beneficial to the design of robots jumping out of water. In this work, the free jump of a sphere out of the water is successfully simulated based on the Computational Fluid Dynamics (CFD) software Fluent, with User-Defined Functions to control the motion of the sphere, the volume of Fluid model, dynamic meshing, and Detached Eddy Simulation. The velocity of the sphere at the water-air interface and the height of the sphere leaping out from the water surface obtained from the numerical simulation are compared with experimental results. The maximum error between the experimental and the simulated results is 2.28% in the water-discharge velocity and 2.65% in the leaping height from the water surface. In addition, this paper model the dynamics of the sphere during the water discharge process. The paper also analyses the free deformation of water surface, the water film rupture process on the surface of the sphere, the variation of fluid drag on the sphere, and the variation of the fluid velocity field during the free ascent of the sphere after acquiring an initial velocity of 2.81 m/s.
KW - Dynamics modelling
KW - Fluent
KW - Numerical simulation
KW - Sphere out of water
KW - Water discharge process
UR - https://www.scopus.com/pages/publications/85170822179
U2 - 10.1109/ICMA57826.2023.10215870
DO - 10.1109/ICMA57826.2023.10215870
M3 - 会议稿件
AN - SCOPUS:85170822179
T3 - 2023 IEEE International Conference on Mechatronics and Automation, ICMA 2023
SP - 1551
EP - 1556
BT - 2023 IEEE International Conference on Mechatronics and Automation, ICMA 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th IEEE International Conference on Mechatronics and Automation, ICMA 2023
Y2 - 6 August 2023 through 9 August 2023
ER -