Comptes Rendus
Numerical Analysis
The Khokhlov–Zabolotskaya–Kuznetsov equation
[Équation de Khokhlov–Zabolotskaya–Kuznetsov]
Comptes Rendus. Mathématique, Volume 344 (2007) no. 5, pp. 337-342.

Pour l'équation KZK (utuuxβuxx)xγΔyu=0 dans la classe des fonctions périodiques en x et de moyennes nulles, on a étudié la dérivation à partir du système de Navier–Stokes isentropique et la validation de son approximation, l'existence, l'unicité et la stabilité de la solution. On a prouvé que la solution est globale en temps pour des données initiales suffisement petites avec β>0 et que la solution présente une onde de choc si β=0.

For the KZK equation (utuuxβuxx)xγΔyu=0 in the class of x-periodic and of zero mean value functions we have analysed the following: the derivation from Navier–Stokes system and the validity of its approximation, the existence, uniqueness and stability of the solution. The solution is proved to be global in time for sufficient small initial data with β>0 and to have a blow-up if β=0.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2007.01.010
Anna Rozanova 1

1 Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie, 4, place Jussieu, 75005 Paris, France
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Anna Rozanova. The Khokhlov–Zabolotskaya–Kuznetsov equation. Comptes Rendus. Mathématique, Volume 344 (2007) no. 5, pp. 337-342. doi : 10.1016/j.crma.2007.01.010. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2007.01.010/

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[4] B. Gustafsson; A. Sundström Incompletely parabolic problems in fluid dynamics, SIAM J. Appl. Math., Volume 35 (1978) no. 2, pp. 343-357

[5] I. Kostin, G. Panasenko, Analysis and homogenization of the Khokhlov–Zabolotskaya–Kuznetsov type equation, Oral communication in the International Conference on Advanced Problems in Mechanics, St Petersburg, June 2005

[6] S. Novo Compressible Navier–Stokes model with inflow–outflow boundary conditions, J. Math. Fluid Mech., Volume 7 (2005), pp. 485-514

[7] D. Sanchez Long waves in ferromagnetic media, Zabolotskaya–Khokhlov equation, J. Differential Equations, Volume 210 (2005), pp. 263-289

[8] E.A. Zabolotskaya; R.V. Khokhlov Quasi-planes waves in the nonlinear acoustic of confined beams, Sov. Phys. Acoust., Volume 15 (1969) no. 1, pp. 35-40

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