Feedback Control of Karman Vortex Shedding

reportActive / Technical Report | Accession Number: ADA262814 | Open PDF

Abstract:

A direct numerical simulation of the Navier-Stokes equations of a feedback controlled cylinder wake flow at the Reynolds number of 60 is presented. The simulation shows that vortex shedding behind a circular cylinder is suppressed to a significant degree by applying a feedback forcing with an appropriate phase via blowingsuction slots located at -110 deg from the leading edge. Depending on the phase of the feedback forcing relative to the vortex shedding phase, the shedding of the vortices is either suppressed stabilized or further enhanced destabilized. Active control, Torpedo.

Author(s):
Park, D. S. ; Ladd, D. M. ; Hendricks, E. W.
Author Organization(s):
NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA
Descriptive Note:
Professional paper
Supplementary Note:
Pub. in DSC-Vol. 38, Active Control of Noise and Vibration, ASME, p59-64 1992.
Pagination:
0008

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Project Number(s):
HM40
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application
Communities of Interest:
Weapons Technologies
Descriptor(s):
*MATHEMATICAL MODELS, *VORTEX SHEDDING, *NAVIER STOKES EQUATIONS, CONTROL, REPRINTS, PHASE, LEADING EDGES, REYNOLDS NUMBER, SUCTION SLOTS, CIRCULAR, SUCTION, FLOW, WAKE, TORPEDOES, EDGES, VORTICES
Field(s)/Group(s):
Fluid Mechanics
Keyword(s):
PE0605861N, WUDN300051
Report Date:
1992 Jan 01