Hairpin Vortex Formation in Poiseuille Flow Due to Two-Hole Suction
TEXAS UNIV AT AUSTIN DEPT OF AEROSPACE ENGINEERING AND ENGINEERING MECHANICS
Pagination or Media Count:
A virtual-surface DNS is used to examine hairpin formation caused by a pair of suction holes below a laminar wall-bounded flow. The work models an experiment, presently underway, in which quasi-periodic hairpins are to be generated in a laminar plane-Poiseuille flow. We present some brief preliminary studies of vortex dynamics and find both symmetric and antisymmetric modes of shedding. We also examine the effect of inter-hole spacing on hairpin formation.
- Fluid Mechanics