Numerical simulation of the steady-state deformation of a smart hydrogel under an external electric field
Numerical simulation of the steady-state deformation of a smart hydrogel under an external electric field
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DOI：
10.1088/0964-1726/11/3/316
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发表时间：
2002-06
影响因子：
4.1
通讯作者：
X. Zhou;Y. Hon;S. Sun;A. Mak
中科院分区：
文献类型：
--
作者：
X. Zhou;Y. Hon;S. Sun;A. Mak
在本文中，我们开发了一个基于多相理论的数值模型来模拟在外部电场下浸入酸性溶液中的水凝胶条的变形响应。变形响应包括复杂的机械-电化学行为，包括机械效应（压力和扩散阻力）、化学效应（浓度、化学势、渗透压）和电效应（电场强度、电势）。复杂耦合的非线性控制方程数值求解采用最近发展的无网格径向基函数方法。我们分析了影响水凝胶条溶胀/收缩行为的主要因素。数值计算结果与实验测量结果吻合较好。
In this paper, we develop a numerical model based on a multiphasic theory to simulate the deformation response of a hydrogel strip immersed into an acidic solution under an external electric field. The deformation response consists of complicated mechano-electrochemical behaviours including mechanical effects (pressure and diffusive drag), chemical effects (concentration, chemical potential, osmotic pressure) and electric effects (electric field intensity, electric potential). The complexly coupled nonlinear governing equations are numerically solved using a recently developed meshless radial basis function method. We analyse the major factors which influence the swelling/shrinking behaviours of the hydrogel strip. The numerical results show good agreement with the experimental measurements.