Numerical simulation of compressible homogeneous turbulence
Abstract
Numerical simulation studies of compressible, homogeneous, turbulent flow were performed. The restriction of homogeneous turbulence allows periodic solutions and hence the use of fast Fourier transformations. Various time schemes were adapted to the Burger equation and then to the Navier-Stokes equations. A Fourier spectral method was used for the space discretization. Application in two-dimensional (square geometry) and three-dimensional (cube geometry) configurations are described. The simulation of flows with constant mean velocity field gradient was analyzed and applied to shear flow. Simulations where the initial velocity field is a superposition of a mean profile and a turbulent disturbance-approximating a jet type flow are presented.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- August 1986
- Bibcode:
- 1986PhDT........23D
- Keywords:
-
- Compressible Flow;
- Computerized Simulation;
- Homogeneous Turbulence;
- Burger Equation;
- Fast Fourier Transformations;
- Navier-Stokes Equation;
- Shear Flow;
- Fluid Mechanics and Heat Transfer