Evaluates grid model efficiency for calculating mean particle flux in isotropic random fields, indicating its accuracy for small correlation lengths.
A simple computer-efficient grid model for an isotropic random field is developed to provide sufficiently high accuracy of solutions to stochastic transport problems for small correlation lengths. Results of test estimation of the time asymptotics of mean particle flux in a multiplying random medium are presented.
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Lotova et al. (2026) studied this question.
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