Title of article
Conservative metric evaluation for high-order finite difference schemes with the GCL identities on moving and deforming grids
Author/Authors
Abe، نويسنده , , Yoshiaki and Iizuka، نويسنده , , Nobuyuki and Nonomura، نويسنده , , Taku and Fujii، نويسنده , , Kozo، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
8
From page
14
To page
21
Abstract
The optimal selection of experimental conditions is essential to maximizing the value of data for inference and prediction, particularly in situations where experiments are time-consuming and expensive to conduct. We propose a general mathematical framework and an algorithmic approach for optimal experimental design with nonlinear simulation-based models; in particular, we focus on finding sets of experiments that provide the most information about targeted sets of parameters.
amework employs a Bayesian statistical setting, which provides a foundation for inference from noisy, indirect, and incomplete data, and a natural mechanism for incorporating heterogeneous sources of information. An objective function is constructed from information theoretic measures, reflecting expected information gain from proposed combinations of experiments. Polynomial chaos approximations and a two-stage Monte Carlo sampling method are used to evaluate the expected information gain. Stochastic approximation algorithms are then used to make optimization feasible in computationally intensive and high-dimensional settings. These algorithms are demonstrated on model problems and on nonlinear parameter inference problems arising in detailed combustion kinetics.
Keywords
Geometric conservation law , Body-fitted coordinates , Freestream preservation , Vortex preservation , Moving and deforming grid , Volume conservation law
Journal title
Journal of Computational Physics
Serial Year
2013
Journal title
Journal of Computational Physics
Record number
1484852
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