Improving the performance of the partitioned QN-ILS procedure for fluid-structure interaction problems
Improving the performance of the partitioned QN-ILS procedure for fluid-structure interaction problems
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DOI：
10.1016/j.compstruc.2016.04.001
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发表时间：
2016-07
影响因子：
4.7
通讯作者：
R. Haelterman;A. Bogaers;Klaudius Scheufele;B. Uekermann;M. Mehl
中科院分区：
文献类型：
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作者：
R. Haelterman;A. Bogaers;Klaudius Scheufele;B. Uekermann;M. Mehl
拟牛顿逆最小二乘法已成为求解分区相互作用问题的一种流行方法。它的性能可以通过使用以前时间步长的信息来增强，如果注意到可能导致的病态情况的话。为了提高稳定性，采用了滤波技术。在这篇文章中，我们证明，对过滤技术进行相对较小的修改可以大大减少所需的迭代次数。
The Quasi-Newton Inverse Least Squares method has become a popular method to solve partitioned interaction problems. Its performance can be enhanced by using information from previous time-steps if care is taken of the possible ill-conditioning that results. To enhance the stability, filtering has been used. In this paper we show that a relatively minor modification to the filtering technique can substantially reduce the required number of iterations.