2 papers
math.NA2024
A Second Moment Method for k-Eigenvalue Acceleration with Continuous Diffusion and Discontinuous Transport Discretizations
Zachary K. Hardy, Jim E. Morel, Jan I. C. Vermaak
The second moment method is a linear acceleration technique which couples the transport equation to a diffusion equation with transport-dependent additive closures. The resulting l…
stat.ME2023
Co-Active Subspace Methods for the Joint Analysis of Adjacent Computer Models
Kellin N. Rumsey, Zachary K. Hardy, Cory Ahrens +1
Active subspace (AS) methods are a valuable tool for understanding the relationship between the inputs and outputs of a Physics simulation. In this paper, an elegant generalization…