22 citations · 35 across the 5 of their papers we have counts for
5 papers
An adaptive, data-driven multiscale approach for dense granular flows
B. Siddani, Weiqun Zhang, Andrew Nonaka +2
The accuracy of coarse-grained continuum models of dense granular flows is limited by the lack of high-fidelity closure models for granular rheology. One approach to addressing thi…
Molecular Fluctuations Inhibit Intermittency in Compressible Turbulence
Ishan Srivastava, Andrew J. Nonaka, Weiqun Zhang +2
In the standard picture of fully-developed turbulence, highly intermittent hydrodynamic fields are nonlinearly coupled across scales, where local energy cascades from large scales…
The Castro AMR Simulation Code: Current and Future Developments
M. Zingale, A. S. Almgren, M. Barrios Sazo +7
We describe recent developments to the Castro astrophysics simulation code, focusing on new features that enable our simulations of X-ray bursts. Two highlights of Castro's ongoing…
Improved Coupling of Hydrodynamics and Nuclear Reactions via Spectral Deferred Corrections
M. Zingale, M. P. Katz, J. B. Bell +3
Simulations in stellar astrophysics involve the coupling of hydrodynamics and nuclear reactions under a wide variety of conditions, from simmering convective flows to explosive nuc…
Toward Resolved Simulations of Burning Fronts in Thermonuclear X-ray Bursts
M. Zingale, K. Eiden, Y. Cavecchi +9
We discuss the challenges of modeling X-ray bursts in multi-dimensions, review the different calculations done to date, and discuss our new set of ongoing simulations. We also desc…