Carol Ahnert
Technical University of Madrid
17 Papers
172 Citations
Carol Ahnert is an academic researcher from Technical University of Madrid. The author has contributed to research in topics: Finite difference method & Discontinuity (linguistics). The author has an hindex of 10, co-authored 17 publications.
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Papers
A Linear Discontinuous Finite Difference Formulation for Synthetic Coarse-Mesh Few-Group Diffusion Calculations
J.M. Aragones,Carol Ahnert +1 more
TL;DR: In this article, a linear discontinuous finite difference formulation to solve the diffusion equations in coarse mesh and few groups is developed, where the correction factors for heterogeneities, coarse mesh, and spectral effects are general interface flux discontinuity factors that can be explicitly calculated (synthetized) from detailed diffusion or transport solutions in fine mesh (heterogeneous) and multigroups, preserving the integrated fluxes and interface net currents.
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The Analytic Coarse-Mesh Finite Difference Method for Multigroup and Multidimensional Diffusion Calculations
TL;DR: In this article, the analytical coarse-mesh finite difference (ACMFD) method for multigroup diffusion equations with any number of groups and multidimensional diffusion calculations of eigenvalue and external source problems is presented.
The analytic nodal diffusion solver ANDES in multigroups for 3D rectangular geometry: Development and performance analysis
TL;DR: This work addresses the development and implementation of the analytic coarse-mesh finite-difference (ACMFD) method in a nodal neutron diffusion solver called ANDES, and develops and implements a new approach for solving the control rod “cusping” problem.
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Propagation of nuclear data uncertainties for pwr core analysis
TL;DR: In this paper, an uncertainty propagation methodology based on the Monte Carlo method is applied to PWR nuclear design analysis to assess the impact of nuclear data uncertainties, which is compared with the design and acceptance criteria to assure the adequacy of bounding estimates in safety margins.
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Analytic Coarse-Mesh Finite-Difference Method Generalized for Heterogeneous Multidimensional Two-Group Diffusion Calculations
TL;DR: In this article, a new equivalent parameter generation methodology has been developed and tested to take into account in a more effective and accurate way the intranodal heterogeneities in coarse-mesh finite-difference (CMFD) methods, which accounts for the dependence of the nodal homogeneized two-group cross sections and nodal coupling factors.