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A new approach to the stabilization and convergence acceleration in coupled Monte CarloeCFD calculations: The Newton method via Monte Carlo perturbation theory

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This paper proposes the adoption of Monte Carlo perturbation theory to approximate the Jacobian matrix of coupled neutronics/thermal-hydraulics problems. The projected Jacobian is obtained from the eigenvalue decomposition of the fission matrix, and it is adopted to solve the coupled problem via the Newton method.

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Nội dung Text: A new approach to the stabilization and convergence acceleration in coupled Monte CarloeCFD calculations: The Newton method via Monte Carlo perturbation theory

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