TY - JOUR
T1 - Three-dimensional simulation of a self-propelled fish-like body swimming in a channel
AU - Zhang, Yanrong
AU - Kihara, Hisashi
AU - Abe, Ken Ichi
N1 - Funding Information:
This research was supported by a Grant-in-Aid for Scientif ic Research (JP16K05042) from the Japan Society for the Promotion of Science. This work was also supported by the ‘Advanced Computational Scientific Program’ of the Research Institute for Information Technology, Kyushu University. The present computation was mainly carried out using computer facilities at the Research Institute for Information Technology, Kyushu University, Japan. Y. Zhang was financially supported by the China Scholarship Council.
Publisher Copyright:
© 2018 The Author(s).
PY - 2018/1/1
Y1 - 2018/1/1
N2 - In this study, a three-dimensional simulation of a fish-like body swimming in a channel with non-slip walls was carried out to investigate the effects of kinematics on swimming performance. Selfpropelled swimming in an inertial coordinate system was examined by using the direct forcing immersed boundary method. The fish body consisted of several rigid bodies and behaved analogously to a multi-segment robotic fish. The computational program was first validated by simulating fluid flow around a circular cylinder at Reynolds number (Re) =100 and Re = 1000, as well as around a settling particle. The results were compared with experimental and numerical results from past research in the area. A virtual parametric study of the tail-beat frequency, phase difference between neighboring body segments, and body amplitude was then conducted. The effect of the lateral and vertical distance between the model body and walls on swimming performance is also discussed. The results for the velocity and vorticity fields around the model body provided evidence for the mechanism of thrust generation and highlighted the effects of kinematics on swimming performance.
AB - In this study, a three-dimensional simulation of a fish-like body swimming in a channel with non-slip walls was carried out to investigate the effects of kinematics on swimming performance. Selfpropelled swimming in an inertial coordinate system was examined by using the direct forcing immersed boundary method. The fish body consisted of several rigid bodies and behaved analogously to a multi-segment robotic fish. The computational program was first validated by simulating fluid flow around a circular cylinder at Reynolds number (Re) =100 and Re = 1000, as well as around a settling particle. The results were compared with experimental and numerical results from past research in the area. A virtual parametric study of the tail-beat frequency, phase difference between neighboring body segments, and body amplitude was then conducted. The effect of the lateral and vertical distance between the model body and walls on swimming performance is also discussed. The results for the velocity and vorticity fields around the model body provided evidence for the mechanism of thrust generation and highlighted the effects of kinematics on swimming performance.
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U2 - 10.1080/19942060.2018.1453381
DO - 10.1080/19942060.2018.1453381
M3 - Article
AN - SCOPUS:85053552041
SN - 1994-2060
VL - 12
SP - 473
EP - 492
JO - Engineering Applications of Computational Fluid Mechanics
JF - Engineering Applications of Computational Fluid Mechanics
IS - 1
ER -