Emergent dynamics of the Cucker–Smale flocking model and its variants

YP Choi, SY Ha, Z Li - Active Particles, Volume 1: Advances in Theory …, 2017 - Springer
In this chapter, we present the Cucker–Smale-type flocking models and discuss their
mathematical structures and flocking theorems in terms of coupling strength, interaction …

On well-posedness for thick spray equations

L Ertzbischoff, D Han-Kwan - arXiv preprint arXiv:2303.09467, 2023 - arxiv.org
In this paper, we prove the local in time well-posedness of thick spray equations in Sobolev
spaces, for initial data satisfying a Penrose-type stability condition. This system is a coupling …

On hydrodynamic limits of the Vlasov-Navier-Stokes system

D Han-Kwan, D Michel - arXiv preprint arXiv:2103.06668, 2021 - arxiv.org
We introduce a framework to justify hydrodynamic limits of the Vlasov-Navier-Stokes system.
We specifically study high friction regimes, which take into account the fact that particles of …

Large time behavior of the Vlasov–Navier–Stokes system on the torus

D Han-Kwan, A Moussa, I Moyano - Archive for Rational Mechanics and …, 2020 - Springer
We study the large time behavior of Fujita–Kato type solutions to the Vlasov–Navier–Stokes
system set on T^ 3 * R^ 3 T 3× R 3. Under the assumption that the initial so-called modulated …

Asymptotic analysis for a Vlasov–Fokker–Planck/Navier–Stokes system in a bounded domain

YP Choi, J Jung - Mathematical Models and Methods in Applied …, 2021 - World Scientific
We study an asymptotic analysis of a coupled system of kinetic and fluid equations. More
precisely, we deal with the nonlinear Vlasov–Fokker–Planck equation coupled with the …

Concentration versus absorption for the Vlasov–Navier–Stokes system on bounded domains

L Ertzbischoff, D Han-Kwan, A Moussa - Nonlinearity, 2021 - iopscience.iop.org
We study the large time behaviour of small data solutions to the Vlasov–Navier–Stokes
system set on ${\Omega}{\times}{\mathbb {R}}^{3} $, for a smooth bounded domain Ω of …

Large-time behavior of small-data solutions to the Vlasov–Navier–Stokes system on the whole space

D Han-Kwan - Probability and Mathematical Physics, 2022 - msp.org
We study the large-time behavior of small-data solutions to the Vlasov–Navier–Stokes
system on ℝ 3× ℝ 3. We prove that the kinetic distribution function concentrates in velocity to …

[HTML][HTML] The Cauchy problem for the pressureless Euler/isentropic Navier–Stokes equations

YP Choi, B Kwon - Journal of Differential Equations, 2016 - Elsevier
We present a new hydrodynamic model consisting of the pressureless Euler equations and
the isentropic compressible Navier–Stokes equations where the coupling of two systems is …

Local well-posedness for the compressible Navier–Stokes–BGK model in Sobolev spaces with exponential weight

YP Choi, J Jung - Mathematical Models and Methods in Applied …, 2024 - World Scientific
Sprays are complex flows constituted of dispersed particles in an underlying gas. In this
paper, we are interested in the equations for moderately thick sprays consisting of the …

Uniqueness of the solution to the 2D Vlasov–Navier–Stokes system

D Han-Kwan, É Miot, A Moussa, I Moyano - Revista Matemática …, 2019 - ems.press
We prove a uniqueness result for weak solutions to the Vlasov–Navier–Stokes system in two
dimensions, both in the whole space and in the periodic case, under a mild decay condition …