Abstract

This note describes some quasi-analytical solutions for wave propagation in free surface Euler equations and linearized Euler equations. The obtained solutions vary from a sinusoidal form to a form with singularities. They allow a numerical validation of the free-surface Euler codes.

Highlights

  • This note describes some quasi-analytical solutions for wave propagation in free surface Euler equations and linearized Euler equations

  • The water wave problem described by the Euler equations with a free surface has been widely studied in the literature, see e.g. [5, 8, 10,11,12]

  • This paper proposes some quasi-analytical solution of these equations that allow, for example, to validate the efficiency of the numerical tools

Read more

Summary

Introduction

The water wave problem described by the Euler equations with a free surface has been widely studied in the literature, see e.g. [5, 8, 10,11,12]. We consider the Euler system and the linearized Euler system over a flat bottom for x ∈ R and 0 ≤ z ≤ h(t , x) given respectively by (1)-(3) and (4)-(6), where u(t , x, z), w(t , x, z) are the two components of the velocity in the (x, z) domain, h(t , x) is the water depth, p(t , x, z) is the pressure and ρ0 is the density assumed to be constant: These systems are completed by initial conditions u(0, x, z) = u0(x, z), w (0, x, z) = w 0(x, z), p(0, x, z) = p0(x, z) , a dynamic boundary condition at the free surface ps = p(t , x, h(t , x)) = pa(t , x),.

Propagating waves for the linearized Euler system
Propagating waves for the Euler system
Standing waves
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call