An experimental investigation of the interaction and merging of two turbulent line vortices is described. The vortices were generated by two airfoils set at opposite angles of attack, and they were of opposite sign and equal strength. As the vortices proceed downstream they rotate around each other, and eventually they merge to produce a dominant, central vortex, with vestigal traces of the original vortices. Mean flow and turbulence measurements were made throughout the merging zone. The circulation profiles varied logarithmically with radius, for a considerable radial extent, at all stations. The turbulent shear stresses appeared to be simply related to the mean velocity gradients, and it seems that first-order turbulence models may be adequate to describe the merging process.
|Published - 1985
|AlAA 23rd Aerospace Sciences Meeting, 1985 - Reno, United States
Duration: Jan 14 1985 → Jan 17 1985
|AlAA 23rd Aerospace Sciences Meeting, 1985
|1/14/85 → 1/17/85
All Science Journal Classification (ASJC) codes
- Aerospace Engineering