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Showing 1 to 8 of 8 for “"flux reconstruction"”.
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Numerical Analysis of Flux Reconstruction
… One such high-order method in particular – Flux Reconstruction – is the focus of this thesis. This body of work relies and expands on the theoretical methods that are used to understand the behaviour of numerical methods – particularly related to their real-world application to industrial …
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Magnetic flux reconstruction methods for shaped tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1994.
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Error Analysis, Improvement, and New Applications of Nodal Flux Reconstruction Methods
Finally, new applications of the reconstructed flux are investigated. One application of the methodology developed in this thesis is the creation of an analytical flux distribution from the region average data from a Monte Carlo code. The specific example of the one-dimensional axial flux in a …
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Heat Flux Reconstruction in a Multimaterial Gauge with Multiple Embedded Temperature Sensors
Creating heat flux maps is one of the major data reduction tasks of ground-test hypersonic facilities. The ability to embed multiple high-frequency sensing elements offers improved performance of over other types of heat flux gauges, such as Schmidt-Bolter gauges, when there is significant lateral …
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Multidimensional and High Frequency Heat Flux Reconstruction Applied to Hypersonic Transitional Flows
… for the detection of high-frequency heat flux fluctuations supported by hypersonic flow in transitional boundary layers. The focus of this research is on understanding the mathematical properties of the reconstruction such as regularity, sensitivity to noise, multi-resolution, and …
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Acceleration Techniques for Industrial Large Eddy Simulation with High-Order Methods on CPU-GPU Clusters
… cost of industrial LES. The high-order flux reconstruction (FR) method is used as the spatial discretization scheme. First, two acceleration techniques are investigated: the p-multigrid algorithm and Mach number preconditioning. The Weiss and Smith low Mach number preconditioner is used …
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Automated Segmentation and Analysis of High-Speed Video Phase-Detection Data for Boiling Heat Transfer Characterization Using U-Net Convolutional Neural Networks and Uncertainty Quantification
… evaluation of uncertainty propagation in heat flux reconstruction, and the extension of the methodology to other multiphase flow phenomena. By addressing these recommendations, the understanding, characterization, and modeling of boiling phenomena can be further enhanced, contributing to the …
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The "virtual density" theory of neutronics
… geometry, but resolving minute reactivities and flux shift tallies within large heterogeneous cores requires CPU years per case and is thus prohibitively expensive. Currently, the most widely-used methods consist of various approximations involving weighting the uniform radial swelling reactivity …