FN Archimer Export Format
PT J
TI Un modèle bidomaine aux équations primitives en Océanographie physique
OT A bidomain primitive equation model
BT 
AF LAUGIER, M
   MORTIER, L
   DEKEYSER, I
AS 1:;2:;3:;
FF 1:;2:;3:;
C1 CABINET ETUD TECH IND & INNOVAT SCI,F-94200 IVRY,FRANCE
C2 CABINET ETUD TECH IND & INNOVAT SCI,F-94200 IVRY,FRANCE
IF 0.662
TC 3
UR https://archimer.ifremer.fr/doc/00099/21028/18654.pdf
LA French
DT Article
AB This study concerns numerical simulations carried out following the elaboration of an oceanological multidomain model. These simulations demonstrate the value of such a model for physical oceanography. A simplified, two-domain version of the multidomain model is presented. It is based on a computer code which solves the Navier-Stokes and temperature equations in the three dimensions of space for an incompressible fluid in accordance with the hydrostatic approximation and Boussinesq's assumption. This model permits a zoom on a specific region of the spatial domain, where the primitive equations are solved, with a mesh refinement, in order to correct by feedback the global numerical solution. It includes a nested procedure which manages the resolution of the differential problem on two domains. This technique of domain decomposition forms part of the numerical methods of domain refinement with full overlapping. The model is tested by the simulation of a barotropic modon, an analytic solution, of the quasigeostrophic potential vorticity equation, adequately representative of an oceanic vortex. The numerical solutions obtained with the monodomain and bidomain model are compared with each other by calculation of the errors commited in the two cases relative to the analytic solution. It appears that this interactive nested technique permits correct management of open boundaries conditions. The zoom performed on a region of the spatial domain efficiently corrects the global solution compared with that obtained by the basic monodomain model.
PY 1994
SO Oceanologica Acta
SN 0399-1784
PU Gauthier-Villars
VL 17
IS 4
UT A1994QK12200002
BP 355
EP 367
ID 21028
ER

EF