Accession Number:

ADP013669

Title:

Hairpin Vortex Formation in Poiseuille Flow Due to Two-Hole Suction

Descriptive Note:

Conference paper

Corporate Author:

TEXAS UNIV AT AUSTIN DEPT OF AEROSPACE ENGINEERING AND ENGINEERING MECHANICS

Personal Author(s):

• Goldstein, D. B.
• Cohen, J.
• Levinski, V.

Report Date:

2001-08-01

Pagination or Media Count:

8.0

Abstract:

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.

Descriptors:

• *POISEUILLE FLOW
• SYMPOSIA
• VORTICES
• HOLES(OPENINGS)
• REYNOLDS NUMBER
• SUCTION SLOTS
• LAMINAR BOUNDARY LAYER

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE