A fast algorithm for time-dependent radiative transport equation based on integral formulation
A fast algorithm for time-dependent radiative transport equation based on integral formulation
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DOI:
10.4208/csiam-am.2020-0012
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发表时间:
2020-01
期刊:
影响因子:
--
通讯作者:
Hongkai Zhao;Yimin Zhong
中科院分区:
文献类型:
--
作者:
Hongkai Zhao;Yimin Zhong
In this work, we introduce a fast numerical algorithm to solve the time-dependent radiative transport equation (RTE). Our method uses the integral formulation of RTE and applies the treecode algorithm to reduce the computational complexity from O(M^{2+1/d} ) to O(M^{1+1/d} log M ), where M is the number of points in the physical domain. The error analysis is presented and numerical experiments are performed to validate our algorithm.