An operator expansion method for computing nonlinear surface waves on a ferrofluid jet
An operator expansion method for computing nonlinear surface waves on a ferrofluid jet
复制标题
计算铁磁流体射流非线性表面波的算子展开法
DOI:
10.1016/j.jcp.2016.05.055
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发表时间:
2016
影响因子:
4.1
通讯作者:
Guyenne P
中科院分区:
文献类型:
--
作者:
Guyenne P
We present a new numerical method to simulate the time evolution of axisymmetric nonlinear waves on the surface of a ferrofluid jet. It is based on the reduction of this problem to a lower-dimensional computation involving surface variables alone. To do so, we describe the associated Dirichlet–Neumann operator in terms of a Taylor series expansion where each term can be efficiently computed by a pseudo-spectral scheme using the fast Fourier transform. We show detailed numerical tests on the convergence of this operator and, to illustrate the performance of our method, we simulate the long-time propagation and pairwise collisions of axisymmetric solitary waves. Both depression and elevation waves are examined by varying the magnetic field. Comparisons with weakly nonlinear predictions are also provided.
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DOI:
10.1137/s0036141004444810
发表时间:
2005
期刊:
SIAM J. Math. Anal.
影响因子:
--
作者:
Bei Hu;D. Nicholls
通讯作者:
D. Nicholls
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
R. Llave;P. Panayotaros
通讯作者:
P. Panayotaros
影响因子:
3.7
作者:
R. Jeppson
通讯作者:
R. Jeppson
影响因子:
3.7
作者:
Blyth, M. G.;Parau, E. I.
通讯作者:
Parau, E. I.
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
W. Craig
通讯作者:
W. Craig