activity
20152026
most citedNew effective pressure and existence of global strong solution for compressible Navier-Stokes equations with general viscosity coefficient in one dimension

18 citations · 34 across the 14 of their papers we have counts for

collaborators

18 papers

math.AP2026

Pressure and temperature relaxation limit for a one-velocity Baer-Nunziato model

Cosmin Burtea, Timothée Crin-Barat, Pierre Gonin--Joubert

The dynamics of two-phase flows out of mechanical and thermal equilibrium are described by a partially dissipative first-order quasilinear system with stiff interaction terms assoc…

math.AP2026

A variational approach to the derivation of reduced models for bubbly flows

Cosmin Burtea, David Gérard-Varet

In this paper, we derive reduced models for the motion of gas bubbles in an ambient inviscid liquid, using Hamilton's least action principle. We first explain how to recover from t…

math.AP2026

On the relaxation towards mechanical equilibrium for two-pressure compressible flows

Cosmin Burtea, Timothée Crin-Barat, Pierre Gonin--Joubert

We introduce a symmetrization of a one-velocity two-pressures Baer-Nunziato type model for mixtures of barotropic compressible fluids. It allows us to justify the zero compaction v…

math.AP2025

Weak solutions of a viscous model for fluid-bubbles interaction

Cosmin Burtea, David Gérard-Varet

We present a system of Navier-Stokes type that describes the dynamics of several spherical bubbles of gas in a liquid. It is derived from a more complete model, where the bubbles a…

math.AP2025

Discontinuous shear-thickening asymptotic for power-law systems related to compressible flows

Didier Bresch, Cosmin Burtea, Maja Szlenk

In this paper we study the convergence of a power-law model for dilatant compressible fluids to a class of models exhibiting a maximum admissible shear rate, called thick compressi…

math.AP2024

Two-phase averaged system justification for ideal gases without conductivity

D Bresch, C Burtea, P Gonin--Joubert +1

This article concerns the mathematical justification of an averaged system of partial differential equations governing the evolution of a two-phase mixture of compressible ideal fl…