The orthogonal decomposition of pressure fluctuations surrounding a turbulent jet
Abstract
The general acceptance that mixing layers and jets can support large scale coherent structures leads to the question of what are the conditions under which they form. It becomes a difficult task to incorporate the ever-increasing library of experimental observations into a unifying statement due to the varying conditions under which experiments are conducted. This paper attempts to initiate a program by which the large-scale coherence of turbulent jets can be determined in an unbiased manner. The procedures developed are applied to experimental data obtained from a low Reynolds number incompressible 'clean' jet. This is regarded as the baseline situation for which future experiments at other conditions can be compared.
- Publication:
-
5th Symposium on Turbulent Shear Flows
- Pub Date:
- 1985
- Bibcode:
- 1985stsf.proc....4L
- Keywords:
-
- Computational Fluid Dynamics;
- Karhunen-Loeve Expansion;
- Pressure Oscillations;
- Turbulent Jets;
- Energy Spectra;
- Incompressible Flow;
- Low Reynolds Number;
- Mixing Layers (Fluids);
- Near Fields;
- Fluid Mechanics and Heat Transfer