A new hydrodynamic code with explicit vectorization instructions optimizations that is dedicated to the numerical simulation of astrophysical gas flow. I. Numerical …

I Kulikov, I Chernykh, A Tutukov - The Astrophysical Journal …, 2019 - iopscience.iop.org
In this paper, a new hydrodynamics code to simulate astrophysical flows on Intel Xeon Phi
KNL and Intel Xeon Scalable processors is presented. A new vector high-order accuracy …

Dust growth and pebble formation in the initial stages of protoplanetary disk evolution

EI Vorobyov, I Kulikov, VG Elbakyan, J McKevitt… - Astronomy & …, 2024 - aanda.org
Aims. The initial stages of planet formation may start concurrently with the formation of a gas-
dust protoplanetary disk. This makes the study of the earliest stages of protoplanetary disk …

A new code for the numerical simulation of relativistic flows on supercomputers by means of a low-dissipation scheme

I Kulikov - Computer Physics Communications, 2020 - Elsevier
A new code to simulate special relativistic hydrodynamic flows on supercomputer
architectures with distributed memory is described. The code is based on a combination of …

An efficient optimization of HLL method for the second generation of Intel Xeon Phi processor

IM Kulikov, IG Chernykh, BM Glinskiy… - Lobachevskii Journal of …, 2018 - Springer
In this paper, a new approach to vectorization of algorithms of computational fluid dynamics
to simulate the dynamics of astrophysical objects is presented. A co-design of a …

A new parallel code based on a simple piecewise parabolic method for numerical modeling of colliding flows in relativistic hydrodynamics

I Kulikov, I Chernykh, D Karavaev, V Prigarin… - Mathematics, 2022 - mdpi.com
A new parallel code based on models of special relativistic hydrodynamics is presented for
describing interacting flows. A new highly accurate numerical method is considered and …

A piecewise-parabolic reconstruction of the physical variables in a low-dissipation HLL method for the numerical solution of the equations of special relativistic …

IM Kulikov, DA Karavaev - Numerical Analysis and Applications, 2023 - Springer
A construction of the original HLL method for solving problems of relativistic hydrodynamics
by using a piecewise-parabolic reconstruction of the physical variables is described. The …

Using piecewise parabolic reconstruction of physical variables in the Rusanov solver. I. The special relativistic hydrodynamics equations

IM Kulikov - Journal of Applied and Industrial Mathematics, 2023 - Springer
The Rusanov solver for solving hydrodynamic equations is one of the most robust schemes
in the class of Riemann solvers. For special relativistic hydrodynamics, the robustness …

Computing the gravitational potential on nested meshes using the convolution method

EI Vorobyov, J McKevitt, I Kulikov… - Astronomy & …, 2023 - aanda.org
Aims. Our aim is to derive a fast and accurate method for computing the gravitational
potential of astrophysical objects with high contrasts in density, for which nested or adaptive …

Use of dynamic adaptive chemistry and dynamic cell clustering in computational fluid dynamics to accelerate calculation of combustion simulation of diesel engine

S Feng, H Zhang - Fuel, 2023 - Elsevier
Based on the theory of dynamic adaptive chemistry and dynamic cell clustering, a 3D model
for fuel combustion in the cylinder is constructed to study the fast calculation algorithm to …

The co-design of astrophysical code for massively parallel supercomputers

B Glinsky, I Kulikov, I Chernykh, D Weins… - … on Algorithms and …, 2016 - Springer
The rapid growth of supercomputer technologies became a driver for the development of
natural sciences. Most of the discoveries in astronomy, in physics of elementary particles, in …