Turbulence and Transition: A Progress Report
Abstract
The paper surveys some recent progress in the direct solution of the Navier-Stokes equations for turbulent and transition flows. Some novel features of the numerical analysis of spectral methods used for high-resolution, high-accuracy calculation of flows are examined. Existing computer codes developed for studies of transition and turbulence are reviewed, with the special characteristics of the code KILOBOX for two-dimensional turbulence problems being considered. The normal mode of operation of KILOBOX is to solve the vorticity-stream function form of the two-dimensional Navier-Stokes equations, homogeneous turbulence being simulated by periodic boundary conditions. Although the two-dimensional equations do not exhibit truly random behavior, low-order moments behave as if they do. Some KILOBOX calculations of the evolution of high-Reynolds number flows, including inertial-range behavior, are also presented.
- Publication:
-
Some Methods of Resolution of Free Surface Problems
- Pub Date:
- 1976
- DOI:
- 10.1007/3-540-08004-X_297
- Bibcode:
- 1976LNP....59...32O
- Keywords:
-
- Computerized Simulation;
- Navier-Stokes Equation;
- Transition Flow;
- Turbulent Flow;
- Computer Programs;
- Numerical Flow Visualization;
- Two Dimensional Flow;
- Fluid Mechanics and Heat Transfer