# Incompressible Limit of isentropic Navier-Stokes equations with Navier-slip boundary

## TL;DR

This paper investigates the low Mach number limit of weak solutions to the isentropic compressible Navier-Stokes equations with Navier-slip boundary conditions, establishing strong convergence results as Mach number approaches zero.

## Contribution

It extends previous results by proving strong convergence of velocity under Navier-slip boundary conditions with slip length depending on Mach number.

## Key findings

- Strong convergence of velocity as Mach number tends to zero
- Validation of low Mach number limit with Navier-slip boundary condition
- Extension of previous Dirichlet boundary results to Navier-slip case

## Abstract

This paper concerns the low Mach number limit of weak solutions to the compressible Navier-Stokes equations for isentropic fluids in a bounded domain with a Navier-slip boundary condition. In \cite{DGLM99}, it has been proved that if the velocity is imposed the homogeneous Dirichlet boundary condition, as the Mach number goes to 0, the velocity of the compressible flow converges strongly in $L^2$ under the geometrical assumption (H) on the domain. We justify the same strong convergence when the slip length in the Navier condition is the reciprocal of the square root of the Mach number.