The Effects of Three-Dimensional Imposed Disturbances on Bluff Body Near Wake Flows

reportActive / Technical Report | Accession Number: ADA259501 | Open PDF

Abstract:

We wish to achieve a better understanding of the underlying three- dimensional flow structure in the near wake of a bluff body when subjected to imposed geometrical disturbances. We want to understand the effects of three dimensionality that are characterized by vortex splitting and looping and how they are related to other wake such as base pressure shedding frequency, wake width and wake formation length.

Author(s):
Szewczyk, Albin A.
Author Organization(s):
NOTRE DAME UNIV IN DEPT OF AEROSPACE AND MECHANICAL ENGINEERING
Descriptive Note:
Annual rept. 1 Oct-30 Sep 92,
Supplementary Note:
DOI: 10.21236/ADA259501
Pagination:
0007

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

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

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-90-J-4083
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_1.2.7_Experimentation; JCA_4.6_Engineering
Communities of Interest:
Space
Descriptor(s):
*WAKE, *THREE DIMENSIONAL FLOW, FREQUENCY, STRUCTURES, THREE DIMENSIONAL, FLOW, BASE PRESSURE, SPLITTING, WIDTH, LENGTH, PRESSURE
Field(s)/Group(s):
Fluid Mechanics
Keyword(s):
BLUFF BODIES
Report Date:
1992 Sep 30