Sign on

SAO/NASA ADS Physics Abstract Service

· Find Similar Abstracts (with default settings below)
· Reads History
·
· Translate This Page
Title:
Reduced Equations for Rapidly Rotating Convection on the Tilted f-plane
Authors:
Julien, Keith; Knobloch, Edgar; Sprague, Michael; Werne, Joseph
Publication:
American Physical Society, 58th Annual Meeting of the Division of Fluid Dynamics, November 20-22, 2005, abstract #NM.004
Publication Date:
11/2005
Origin:
APS
Bibliographic Code:
2005APS..DFD.NM004J

Abstract

Non-Hydrostatic Quasi-Geostrophic Equations (NHQGE) are derived asymptotically in the limit of rapid rotation from the Navier-Stokes equations under the Boussinesq approximation. We consider the case where gravity and planetary rotation vectors are not aligned which requires a multiple-scales representation in a non-orthogonal coordinate system. We numerically investigate the solution to a reduced system of nonlinear PDEs for rapidly rotating convection: non-hydrostatic quasi-geostrophic equations (NHQGE). The resulting equations filter fast inertial waves and relax the need to resolve Ekman boundary layers. NHQGE are applicable to thermally forced flows characterized by thermal and vortical coherent structures that span the layer depth. We examine variation of heat transport as a function of scaled Rayleigh number. We also investigate the dynamics of the vortical structures and their effect on lateral mixing.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints