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Showing 1 to 6 of 6 for “"radiation hydrodynamics"”.
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Lie Group Invariance Properties of Radiation Hydrodynamics Equations
Made available in DSpace on 2017-07-06T18:38:03Z (GMT). No. of bitstreams: 3 Coggeshall_Stephen_V_PhD.pdf: 98937878 bytes, checksum: 222756a87e39c2005bab2bbf099508f3 (MD5) Coggeshall_Stephen_V_PhD_ABS.pdf: 451972 bytes, checksum: 4c84d2c1e0b39722d200ae1164d25b0a (MD5) license.txt: 4813 bytes, …
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Resolving the Mysteries of Highly Irradiated Planets: Observations and Simulations
… temperatures and/or through high energy FUV/Xray radiation. The resulting planets exhibit a diverse array of physical characteristics unlike those seen on Earth. I present a collection of works broadly encompassed by the theme of understanding highly irradiated planets and a set of new techniques …
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Coupling Computationally Expensive Radiative Hydrodynamic Simulations with Machine Learning for Graded Inner Shell Design Optimization in Double Shell Capsules
… predictive physics simulations, such as in the radiation-hydrodynamics code xRAGE, are computationally expensive, limiting the design process and ability to find an optimal design. Machine learning provides a mechanism to leverage expensive simulation data and alleviate limitations on …
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Formation of the first galaxies under stellar feedback
… the results of self-consistent, cosmological radiation hydrodynamics zoomed-in simulations of the formation and the evolution of the first galaxies. In particular, we focus on the role of different stellar feedback from first stars, such as photoionization heating from individual stars, X-ray …
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Accelerating Astrophysical Simulations with GPUs: A Case Study of Radiative Transfer in arepo-rt
… history. However, on-the-fly integration into radiation-hydrodynamics (RHD) simulations is computationally demanding, particularly due to the stringent time-stepping conditions and increased dimensionality inherent in multifrequency collisionless Boltzmann physics. The recent emergence of …
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General relativistic radiation magnetohydrodynamics, with applications to black hole accretion disks
… methods for general relativistic magnetohydrodynamics (GRMHD). However, even the local details of MRI-driven turbulence simulations are still not completely understood. Along the way, this work considers a central issue with modeling the MRI: whether the resulting stress is independent of …