Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method
This paper presents a numerical study on a sperm swimming in a viscous fluid by using an immersed boundary-lattice Boltzmann method (IB-LBM). The sperm is modeled simply by integrating a slender tail and an elliptical head. By applying a tail traveling wave vertical to the wall, a sperm swims near a...
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Online Access: | http://dx.doi.org/10.1080/19942060.2020.1779134 |
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doaj-4b317e8a5c5745dd93ab2f01789c5cf52020-12-07T17:17:45ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2020-01-0114185387010.1080/19942060.2020.17791341779134Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann methodQiong-Yao Liu0Xiao-Ying Tang1Duan-Duan Chen2Yuan-Qing Xu3Fang-Bao Tian4School of Life Science, Beijing Institute of TechnologySchool of Life Science, Beijing Institute of TechnologySchool of Life Science, Beijing Institute of TechnologySchool of Life Science, Beijing Institute of TechnologySchool of Engineering and Information Technology, University of New South WalesThis paper presents a numerical study on a sperm swimming in a viscous fluid by using an immersed boundary-lattice Boltzmann method (IB-LBM). The sperm is modeled simply by integrating a slender tail and an elliptical head. By applying a tail traveling wave vertical to the wall, a sperm swims near a surface is simulated. Based on which the corresponding swimming velocity, pressure, and shear stress are analyzed, and the mechanisms of accumulation and acceleration in the swimming process are further investigated. It is found when getting close to the wall, the integration of pressure gradient around the sperm increases, and then, the sperm is accelerated. On the other hand, we also observed that the integration of pressure gradient toward the wall tends to raise; this means a more considerable attraction from the wall occurs. These results provide us some new insights to understand the phenomena of the sperm’s wall acceleration and wall accumulation. Moreover, the variations of the pressure and shear stress indices on the sperm suggested that some perceptible mechanical information based on the flow can be formed. Which reminded us that sperm might be able to sense the flow and adjust its motion.http://dx.doi.org/10.1080/19942060.2020.1779134swimming spermhydrodynamic propulsionwall accelerationimmersed boundary-lattice boltzmann method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Qiong-Yao Liu Xiao-Ying Tang Duan-Duan Chen Yuan-Qing Xu Fang-Bao Tian |
spellingShingle |
Qiong-Yao Liu Xiao-Ying Tang Duan-Duan Chen Yuan-Qing Xu Fang-Bao Tian Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method Engineering Applications of Computational Fluid Mechanics swimming sperm hydrodynamic propulsion wall acceleration immersed boundary-lattice boltzmann method |
author_facet |
Qiong-Yao Liu Xiao-Ying Tang Duan-Duan Chen Yuan-Qing Xu Fang-Bao Tian |
author_sort |
Qiong-Yao Liu |
title |
Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method |
title_short |
Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method |
title_full |
Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method |
title_fullStr |
Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method |
title_full_unstemmed |
Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method |
title_sort |
hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice boltzmann method |
publisher |
Taylor & Francis Group |
series |
Engineering Applications of Computational Fluid Mechanics |
issn |
1994-2060 1997-003X |
publishDate |
2020-01-01 |
description |
This paper presents a numerical study on a sperm swimming in a viscous fluid by using an immersed boundary-lattice Boltzmann method (IB-LBM). The sperm is modeled simply by integrating a slender tail and an elliptical head. By applying a tail traveling wave vertical to the wall, a sperm swims near a surface is simulated. Based on which the corresponding swimming velocity, pressure, and shear stress are analyzed, and the mechanisms of accumulation and acceleration in the swimming process are further investigated. It is found when getting close to the wall, the integration of pressure gradient around the sperm increases, and then, the sperm is accelerated. On the other hand, we also observed that the integration of pressure gradient toward the wall tends to raise; this means a more considerable attraction from the wall occurs. These results provide us some new insights to understand the phenomena of the sperm’s wall acceleration and wall accumulation. Moreover, the variations of the pressure and shear stress indices on the sperm suggested that some perceptible mechanical information based on the flow can be formed. Which reminded us that sperm might be able to sense the flow and adjust its motion. |
topic |
swimming sperm hydrodynamic propulsion wall acceleration immersed boundary-lattice boltzmann method |
url |
http://dx.doi.org/10.1080/19942060.2020.1779134 |
work_keys_str_mv |
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