A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems

A coupled immersed boundary–lattice Boltzmann method (IB–LBM) is introduced to solve biomimetic problems. Compared to the conventional IB–LBM, the strict satisfaction of no-slip boundary condition is implemented in the current method. Consequently, the phenomenon of flow penetration that is frequent...

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Main Authors: Jie Wu, Chang Shu
Format: Article
Language:English
Published: Elsevier 2015-01-01
Series:Theoretical and Applied Mechanics Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034915000148
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author Jie Wu
Chang Shu
author_facet Jie Wu
Chang Shu
author_sort Jie Wu
collection DOAJ
description A coupled immersed boundary–lattice Boltzmann method (IB–LBM) is introduced to solve biomimetic problems. Compared to the conventional IB–LBM, the strict satisfaction of no-slip boundary condition is implemented in the current method. Consequently, the phenomenon of flow penetration that is frequently observed in the conventional IB–LBM is fully prevented, and subsequently the force on the boundary can be calculated more accurately. This feature is of importance for the simulation of biomimetic problems. Moreover, by applying the relationship between the velocity correction and forcing term, the boundary force can be calculated easily. Several biomimetic problems are then simulated. Based on the good agreement between the current results and those in the literature, it may be concluded that the present IB–LBM has the capability to handle various biomimetic problems.
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spelling doaj.art-c1c57f6269644625a727ec464e6811e22022-12-22T01:36:48ZengElsevierTheoretical and Applied Mechanics Letters2095-03492015-01-0151161910.1016/j.taml.2015.01.008A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problemsJie Wu0Chang Shu1Department of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Mechanical Engineering, National University of Singapore, SingaporeA coupled immersed boundary–lattice Boltzmann method (IB–LBM) is introduced to solve biomimetic problems. Compared to the conventional IB–LBM, the strict satisfaction of no-slip boundary condition is implemented in the current method. Consequently, the phenomenon of flow penetration that is frequently observed in the conventional IB–LBM is fully prevented, and subsequently the force on the boundary can be calculated more accurately. This feature is of importance for the simulation of biomimetic problems. Moreover, by applying the relationship between the velocity correction and forcing term, the boundary force can be calculated easily. Several biomimetic problems are then simulated. Based on the good agreement between the current results and those in the literature, it may be concluded that the present IB–LBM has the capability to handle various biomimetic problems.http://www.sciencedirect.com/science/article/pii/S2095034915000148Immersed boundary-lattice Boltzmann methodFlapping wing near groundFlapping wing in forward flight
spellingShingle Jie Wu
Chang Shu
A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
Theoretical and Applied Mechanics Letters
Immersed boundary-lattice Boltzmann method
Flapping wing near ground
Flapping wing in forward flight
title A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
title_full A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
title_fullStr A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
title_full_unstemmed A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
title_short A coupled immersed boundary–lattice Boltzmann method and its simulation for biomimetic problems
title_sort coupled immersed boundary lattice boltzmann method and its simulation for biomimetic problems
topic Immersed boundary-lattice Boltzmann method
Flapping wing near ground
Flapping wing in forward flight
url http://www.sciencedirect.com/science/article/pii/S2095034915000148
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