Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Pierre Orenga"'
Autor:
Anne Tomasi, Pierre Orenga
Publikováno v:
Comptes Rendus Mathematique. 351:43-46
Resume Nous presentons un resultat de convergence de ( ρ n γ ) vers ρ γ dans le cas des equations de Navier–Stokes compressibles isentropiques (Lions, 1996 [6] ) dans un domaine variable en temps. Le point essentiel est de montrer la convergenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::719ebfa1c16d365615818de3057c8b54
https://doi.org/10.1016/j.crma.2012.12.003
https://doi.org/10.1016/j.crma.2012.12.003
Publikováno v:
Annales de l'Institut Henri Poincare (C) Non Linear Analysis. 25(4):725-741
We propose a free boundary shallow water model for which we give an existence theorem. The proof uses an original Lagrangian discrete scheme in order to build a sequence of approximate solutions. The properties of this scheme allow to treat the diffi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17dddf08c86c3c9d3dfd0be188bf42b9
Publikováno v:
Mathematical Models and Methods in Applied Sciences. 17:393-409
In this paper we present a new approach to describe the behaviour of a pollutant slick at the sea surface. To this end, we consider that the pollutant and the water are immiscible and we propose a two-layer model where the lower layer corresponds to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5925986722f9abfa2d0b35e536921d0
https://doi.org/10.1142/s0218202507001966
https://doi.org/10.1142/s0218202507001966
Publikováno v:
Mathematical and Computer Modelling. 42(3-4):325-338
In this paper, we present a numerical method based on a mixed characteristic-Galerkin (or Lagrangian-Galerkin) scheme to solve a shallow water problem with dirichlet boundary conditions. In a first part, we prove an L^2-bound on the water elevation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5670f4756b3fba99eeea2ce171d5618b
Publikováno v:
Mathematical Models and Methods in Applied Sciences. 15:843-869
In this paper, we present a new model for a bi-layer shallow water problem using the rigid-lid hypothesis. This model follows from the usual bi-layer model and can drastically decrease the computational time of simulation. But some mathematical and n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d49f30b1d486b3f69316f5603e2e3b1e
https://doi.org/10.1142/s0218202505000583
https://doi.org/10.1142/s0218202505000583
Publikováno v:
Comptes Rendus Mathematique. 340:719-724
Resume Nous presentons dans cette Note un resultat d'existence pour un probleme de shallow water bicouche, avec conditions aux limites de Dirichlet. La principale difficulte provient des termes couplant les deux couches. Pour les traiter, nous devons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1494437cca7d65c955ec0d7351847441
https://doi.org/10.1016/j.crma.2005.04.019
https://doi.org/10.1016/j.crma.2005.04.019
Autor:
Fabien Flori, Pierre Orenga
Publikováno v:
Comptes Rendus Mathematique. 340:665-670
Resume En utilisant certaines proprietes des espaces de Hardy nous donnons un resultat de regularite sur le terme d'advection des equations de shallow-water. Une application de cette regularite est de permettre de montrer l'existence d'une borne dans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a89c24a3c0797a75b4cff19c316758fe
https://doi.org/10.1016/j.crma.2005.03.024
https://doi.org/10.1016/j.crma.2005.03.024
Publikováno v:
Nonlinear Analysis: Real World Applications. 4:139-171
In this paper, we prove an existence and uniqueness result for a bi-layer shallow water model in depth-mean velocity formulation. Some smoothness results for the solution are also obtained. In a previous work we proved the same results for a one-laye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4266e73d908634db7645f96c7679f9ac
https://doi.org/10.1016/s1468-1218(02)00019-6
https://doi.org/10.1016/s1468-1218(02)00019-6
Autor:
Catherine Giacomoni, Pierre Orenga
Publikováno v:
ESAIM: Mathematical Modelling and Numerical Analysis. 36:1091-1109
We analyze the compressible isentropic Navier–Stokes equations (Lions, 1998) in the two-dimensional case with . These equations also modelize the shallow water problem in height-flow rate formulation used to solve the flow in lakes and perfectly we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49d82dfde6ddfbbc81d5f48ff63abd28
https://doi.org/10.1051/m2an:2003007
https://doi.org/10.1051/m2an:2003007
Publikováno v:
Annales mathématiques Blaise Pascal. 9:269-281
Nous presentons dans ce document un resultat d'existence d'un probleme de tsunami. L'ecoulement fluide est represente par un modele de type shallow water bidimensionnel alors que le deplacement de la lithosphere est representee par un modele de plaqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::063068cfa36b97bbe48cedebef5442fa
https://doi.org/10.5802/ambp.160
https://doi.org/10.5802/ambp.160