Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Almgren, A. S."'
Autor:
Su, Q., Li, F., An, W., Decyk, V., Zhao, Y., Hildebrand, L., Dalichaouch, T. N., Zhou, S., Alves, E. P., Almgren, A. S., Mori, W. B.
Plasma-based acceleration (PBA) has emerged as a promising candidate for the accelerator technology used to build a future linear collider and/or an advanced light source. In PBA, a trailing or witness particle beam is accelerated in the plasma wave
Externí odkaz:
http://arxiv.org/abs/2405.00886
Autor:
Sanchez, Isabel Barrio, Almgren, Ann S., Bell, John B., de Frahan, Marc T. Henry, Zhang, Weiqun
State redistribution (SRD) is a recently developed technique for stabilizing cut cells that result from finite-volume embedded boundary methods. SRD has been successfully applied to a variety of compressible and incompressible flow problems. When use
Externí odkaz:
http://arxiv.org/abs/2309.06372
Autor:
Giuliani, Andrew, Almgren, Ann S., Bell, John B., Berger, Marsha J., de Frahan, Marc T. Henry, Rangarajan, Deepak
State redistribution is an algorithm that stabilizes cut cells for embedded boundary grid methods. This work extends the earlier algorithm in several important ways. First, state redistribution is extended to three spatial dimensions. Second, we disc
Externí odkaz:
http://arxiv.org/abs/2112.12360
We present a computational framework for solving the equations of inviscid gas dynamics using structured grids with embedded geometries. The novelty of the proposed approach is the use of high-order discontinuous Galerkin (dG) schemes and a shock-cap
Externí odkaz:
http://arxiv.org/abs/2105.14353
Autor:
Zingale, M., Almgren, A. S., Sazo, M. Barrios, Bell, J. B., Eiden, K., Harpole, A., Katz, M. P., Nonaka, A. J., Willcox, D. E., Zhang, W.
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 development are the new integration technique to couple hydrodynamics
Externí odkaz:
http://arxiv.org/abs/1910.12578
MFiX-Exa is a new code being actively developed at Lawrence Berkeley National Laboratory and the National Energy Technology Laboratory as part of the U.S. Department of Energy's Exascale Computing Project. The starting point for the MFiX-Exa code dev
Externí odkaz:
http://arxiv.org/abs/1909.02067
We present MAESTROeX, a massively parallel solver for low Mach number astrophysical flows. The underlying low Mach number equation set allows for efficient, long-time integration for highly subsonic flows compared to compressible approaches. MAESTROe
Externí odkaz:
http://arxiv.org/abs/1908.03634
Autor:
Porcu, Roberto, Musser, Jordan, Almgren, Ann S., Bell, John B., Fullmer, William D., Rangarajan, Deepak
Publikováno v:
In Chemical Engineering Science 5 June 2023 273
Autor:
Zingale, M., Almgren, A. S., Sazo, M. G. Barrios, Beckner, V. E., Bell, J. B., Friesen, B., Jacobs, A. M., Katz, M. P., Malone, C. M., Nonaka, A. J., Willcox, D. E., Zhang, W.
Publikováno v:
Journal of Physics: Conference Series, 2018, volume 1031, 012024
We describe the AMReX suite of astrophysics codes and their application to modeling problems in stellar astrophysics. Maestro is tuned to efficiently model subsonic convective flows while Castro models the highly compressible flows associated with st
Externí odkaz:
http://arxiv.org/abs/1711.06203
Autor:
Palmer, Bruce J.1 (AUTHOR), Almgren, Ann S.2 (AUTHOR), Johnson, Connah G. M.1 (AUTHOR) connah.johnson@pnnl.gov, Myers, Andrew T.2 (AUTHOR), Cannon, William R.1 (AUTHOR)
Publikováno v:
Scientific Reports. 7/28/2023, Vol. 13 Issue 1, p1-10. 10p.