Enforcing the continuity equation in numerical models of geophysical fluid flows

✍ Scribed by E. Deleersnijder; G. Lebon

• Book ID: 104349233
• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 296 KB
• Volume: 14
• Category: Article
• ISSN: 0893-9659
• DOI: 10.1016/s0893-9659(01)00057-x

✦ Synopsis

Communicated by G. Lebon

Abstraet--A method is described for modifying the velocity field in geophysical fluid models so as to enforce the continuity equation. A corrective mass flux is introduced, which derives from a scalar potential, The latter is the solution of a Poisson problem which is formulated in such a way that a suitable lmrm of the corrective velocity be minimum. It is seen that a generalised vertical coordinate may be used. Finally, an elementary, one-dimensional illustration of the functioning of the method suggested is provided. (~) 2001 Elsevier Science Ltd. All rights reserved.