Large eddy simulation by spectral method or by multi level particle method
Abstract
A description is presented of two kinds of methods which have recently been implemented for the simulation of turbulence. Methods of the first kind are based on the utilization of a spectral and pseudospectral technique. Methods of the second kind involve a discretization of the flow in a large number of sets of vortex carrying particles. The spectral methods appear to be well adapted for the simulation of homogeneous turbulence. However, there are a number of difficulties which will have to be overcome for the simulation of inhomogeneous turbulence. One of these difficulties is related to pressure calculation, while another is the choice of the time scheme. Attention is given to the multilevel particle method for two-dimensional periodic flow and the extension of the method to three dimensions.
- Publication:
-
6th Computational Fluid Dynamics Conference
- Pub Date:
- 1983
- Bibcode:
- 1983cfd..conf..602M
- Keywords:
-
- Computational Fluid Dynamics;
- Spectral Methods;
- Turbulent Flow;
- Vortices;
- Collocation;
- Finite Difference Theory;
- Homogeneous Turbulence;
- Iterative Solution;
- One Dimensional Flow;
- Pressure Distribution;
- Problem Solving;
- Fluid Mechanics and Heat Transfer