Vortices and turbulence (The 23rd Lanchester Memorial Lecture)
Abstract
A comprehensive discussion is presented concerning the phenomena characteristically treated in vortex and turbulence theory, as well as the degree of success achieved by various computation and visualization methods and theoretical models developed for vortex flow behavior prediction. Note is taken of the pioneering research conducted by F. W. Lanchester in 1893-1907, and attention is given to vortex tip and edge generation by rectangular and delta wings, the cool core effect of the Ranque-Hilsch vortex tube, the modeling of shear flows by means of vortex array methods, the classification and modelling of turbulent flows (together with a taxonomy of their calculation methods), and NASA ILLIAC IV computations of two-dimensional channel flow. Also noted are recent results concerning the boundary layer coherent structure of a flat plate at zero pressure gradient, including the regeneration structure and flow distortion and breakdown of a turbulent boundary layer.
- Publication:
-
Aeronautical Journal
- Pub Date:
- December 1983
- Bibcode:
- 1983AeJ....87..371L
- Keywords:
-
- Flow Characteristics;
- Turbulent Flow;
- Vortices;
- Computational Fluid Dynamics;
- Delta Wings;
- Hilsch Tubes;
- Illiac 4 Computer;
- Rectangular Wings;
- Reynolds Number;
- Shear Flow;
- Turbulent Boundary Layer;
- Wing Tip Vortices;
- Fluid Mechanics and Heat Transfer