作者
Daniil A Stefonishin, Sergey A Matveev, Dmitry A Zheltkov
发表日期
2020
研讨会论文
Large-Scale Scientific Computing: 12th International Conference, LSSC 2019, Sozopol, Bulgaria, June 10–14, 2019, Revised Selected Papers 12
页码范围
173-180
出版商
Springer International Publishing
简介
In this work we present recent results on application of low-rank tensor decompositions to modelling of aggregation kinetics taking into account multi-particle collisions (for three and more particles). Such kinetics can be described by system of nonlinear differential equations with right-hand side requiring operations for its straight-forward evaluation, where N is number of particles’ size classes and D is number of particles colliding simultaneously. Such a complexity can be significantly reduced by application low rank tensor decompositions (either Tensor Train or Canonical Polyadic) to acceleration of evaluation of sums and convolutions from right-hand side. Basing on this drastic reduction of complexity for evaluation of right-hand side we further utilize standard second order Runge-Kutta time integration scheme and demonstrate that our approach allows to obtain numerical solutions of studied …
引用总数
学术搜索中的文章
DA Stefonishin, SA Matveev, DA Zheltkov - Large-Scale Scientific Computing: 12th International …, 2020