Method of Computing Fluid Motion in Two-Dimensional Cartesian or Cylindrical Coordinates by Following Lagrangian Energy Cells

Local PDF: ADA382907.pdf

AD Number: ADA382907
Subject Categories: NUMERICAL MATHEMATICS FLUID MECHANICS
Corporate Author: LOS ALAMOS SCIENTIFIC LAB ALBUQUERQUE NM
Title: Method of Computing Fluid Motion in Two-Dimensional Cartesian or Cylindrical Coordinates by Following Lagrangian Energy Cells
Personal Authors: Blewett, Patrick J.
Report Date: JUL 1970
Pages: 13 PAGES
Report Number: LA-4464
Contract Number: W-7405-ENG-36
Monitor Acronym: XJ
Monitor Series: XD
Descriptors: *EULER EQUATIONS, LAGRANGIAN FUNCTIONS, CARTESIAN COORDINATES.
Abstract: It is conjectured that for some physical flow problems there may be an advantage in following energy exactly as one follows mass elements in the conventional Lagrangian formulation of fluid dynamics. Essentially, the argument is a generalization to two dimensions of an idea due to Enig who derived the equations for one-dimensional slab geometry. The equations are derived both differentially and integrally from the Eulerian form, and they are compared with the conventional Lagrangian equations.
Limitation Code: APPROVED FOR PUBLIC RELEASE
Source Code: 394961
Citation Creation Date: 25 OCT 2000