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
Link To Document :
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