Long Time Dynamics for Combustion in Random Media
Long Time Dynamics for Combustion in Random Media
复制标题
随机介质中燃烧的长时间动态
DOI:
10.1007/s00205-021-01723-7
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发表时间:
2022
影响因子:
2.5
通讯作者:
Zlatoš, Andrej
中科院分区:
文献类型:
--
作者:
Zhang, Yuming Paul;Zlatoš, Andrej
We study long time dynamics of combustive processes in random media, modeled by reaction–diffusion equations with random ignition reactions. One expects that under reasonable hypotheses on the randomness, the large space-time scale dynamics of solutions to these equations is almost surely governed by a different effective PDE, which should be a homogeneous Hamilton–Jacobi equation. While this was previously proved in one dimension as well as for isotropic reactions in several dimensions (i.e., with radially symmetric laws), we provide here the first proof of this phenomenon in the general non-isotropic multidimensional setting. Our results hold for reactions that have finite ranges of dependence (i.e., their values are independent at sufficiently distant points in space) as well as for some with infinite ranges of dependence, and are based on proving existence of deterministic front (propagation) speeds in all directions for these reactions.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Bruno Ziliotto
通讯作者:
Bruno Ziliotto
DOI:
10.1090/conm/339
发表时间:
2003-11
期刊:
--
影响因子:
--
作者:
P. Kuchment
通讯作者:
P. Kuchment
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
S. Armstrong;P. Cardaliaguet
通讯作者:
P. Cardaliaguet
影响因子:
1.4
作者:
Yu Zhang
通讯作者:
Yu Zhang
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
L. Caffarelli;Ki;A. Mellet
通讯作者:
A. Mellet