Relativistic Hydrodynamics Modeling by Means Adaptive Nested Mesh on IBM Power 9

Kulikov, Igor; Chernykh, Igor; Berendeev, Evgeny; Karavaev, Dmitry; Protasov, Viktor

doi:10.1007/978-3-030-36592-9_29

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The Numerical Model1

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2020

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“…Note that in the numerical method the calculations are performed in the conservative variables D, M j , and E taking into account the nonlinear relationship between the conservative variables and the primitive ones, ρ, v, and p. A special recovery procedure for the primitive variables and some details of numerical method can be found in papers [13,14,15].…”

Section: The Numerical Modelmentioning

confidence: 99%

The New Relativistic Hydrodynamic Code for Numerical Simulation of Jet Evolution

Kulikov¹

2020

Proceedings of High Energy Phenomena in Relativistic Outflows VII — PoS(HEPRO VII)

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The program code for modeling the processes of special relativistic hydrodynamics is briefly described in the paper. The code is based on the author's library IPANEMA (I'm PArallel NEsted Mesh librAry)-the implementation of nested grids for architectures with shared and distributed memory. A brief description of a subset of the library for working with shared memory is presented in the paper. The results of numerical simulation of the central interaction of a relativistic jet with a dense gas cloud at various jet speeds are presented. A jet moves through a dense uniform gas and collides with a gas cloud, whose density exceeds ten times the background gas. The mechanism of dense clouds destruction when exposed to it by a relativistic jet is presented.

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Section: The Numerical Modelmentioning

confidence: 99%