Showing math.NAShow all
2 papers · 1 filter
math.NA2021
A convergent interacting particle method and computation of KPP front speeds in chaotic flows
Junlong Lyu, Zhongjian Wang, Jack Xin +1
In this paper, we study the propagation speeds of reaction-diffusion-advection (RDA) fronts in time-periodic cellular and chaotic flows with Kolmogorov-Petrovsky-Piskunov (KPP) non…
math.NA2019
Convergence of stochastic structure-preserving schemes for computing effective diffusivity in random flows
Junlong Lyu, Zhongjian Wang, Jack Xin +1
In this paper, we propose stochastic structure-preserving schemes to compute the effective diffusivity for particles moving in random flows. We first introduce the motion of partic…