A Comparative Study of Friction and Numerical Smoothing in a Global Model of Atmospheric Flow.

Abstract

A study is made of different techniques of assuring the long term numerical stability of a one-layer global primitive equation model which uses the pseudospectral technique for the evaluation of horizontal derivatives. It is found that numerical filtering is much more suitable than the use of a linear viscosity term both from the point of view of the stability achieved and the cost of the computation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1977
Accession Number
ADA048476

Entities

People

  • Mostafa M. Ibrahim

Organizations

  • McGill University

Tags

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Angular Momentum
  • Coefficients
  • Computations
  • Energy
  • Energy Transfer
  • Geometry
  • Gravity Waves
  • Grids
  • High Resolution
  • Kinetic Energy
  • Latitude
  • Longitude
  • Low Resolution
  • Temperate Regions
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.
  • Systems Analysis and Design