{ "id": "2403.05673", "version": "v1", "published": "2024-03-08T21:05:14.000Z", "updated": "2024-03-08T21:05:14.000Z", "title": "Analysis of Hybrid MC/Deterministic Methods for Transport Problems Based on Low-Order Equations Discretized by Finite Volume Schemes", "authors": [ "Vincent N. Novellion", "Dmitriy Y. Anistratov" ], "comment": "9 pages,4 figures, 4 tables", "categories": [ "math.NA", "cs.NA" ], "abstract": "This paper presents hybrid numerical techniques for solving the Boltzmann transport equation formulated by means of low-order equations for angular moments of the angular flux. The moment equations are derived by the projection operator approach. The projected equations are closed exactly using a high-order transport solution. The low-order equations of the hybrid methods are approximated with a finite volume scheme of the second-order accuracy. Functionals defining the closures in the discretized low-order equations are calculated by Monte Carlo techniques. In this study, we analyze effects of statistical noise and discretization error on the accuracy of the hybrid transport solution.", "revisions": [ { "version": "v1", "updated": "2024-03-08T21:05:14.000Z" } ], "analyses": { "keywords": [ "finite volume scheme", "low-order equations", "hybrid mc/deterministic methods", "transport problems", "high-order transport solution" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }