A new kernel function for SPH with applications to free surface flows
A new kernel function for SPH with applications to free surface flows
复制标题
SPH 的新核函数及其在自由表面流中的应用
DOI:
10.1016/j.apm.2013.12.001
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发表时间:
2014-08
影响因子:
5
通讯作者:
M.B. Liu
中科院分区:
文献类型:
--
作者:
X.F. Yang;S.L. Peng;M.B. Liu
Smoothed particle hydrodynamics (SPH) is a popular meshfree Lagrangian particle method, which uses a kernel function for numerical approximations. The kernel function is closely related to the computational accuracy and stability of the SPH method. In this paper, a new kernel function is proposed, which consists of two cosine functions and is referred to as double cosine kernel function. The newly proposed double cosine kernel function is sufficiently smooth, and is associated with an adjustable support domain. It also has smaller second order momentum, and therefore it can have better accuracy in terms of kernel approximation. SPH method with this double cosine kernel function is applied to simulate a dam-break flow and water entry of a horizontal circular cylinder. The obtained SPH results agree very well with the experimental results. The double cosine kernel function is also comparatively studied with two frequently used SPH kernel functions, Gaussian and cubic spline kernel functions.
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DOI:
10.1201/9781315373140-19
发表时间:
2016-11
期刊:
Simulation of Additive Manufacturing using Meshfree Methods
影响因子:
--
作者:
Donald H. House;John Keyser
通讯作者:
Donald H. House;John Keyser
影响因子:
0.7
作者:
P. Cleary;M. Prakash;J. Ha;N. Stokes;C. Scott
通讯作者:
P. Cleary;M. Prakash;J. Ha;N. Stokes;C. Scott
DOI:
10.1016/j.jcp.2008.06.014
发表时间:
2008-09
期刊:
J. Comput. Phys.
影响因子:
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作者:
R. Cabezón;D. García-Senz;A. Relaño
通讯作者:
R. Cabezón;D. García-Senz;A. Relaño
DOI:
--
发表时间:
1983-09
期刊:
--
影响因子:
--
作者:
M. Greenhow;Woei-Min Lin
通讯作者:
M. Greenhow;Woei-Min Lin
DOI:
10.1061/(asce)0733-950x(1999)125:3(145
发表时间:
1999-05-01
期刊:
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE
影响因子:
--
作者:
Monaghan, JJ;Kos, A
通讯作者:
Kos, A