Abstract
Detailed measurements of pressure and velocity characteristics are reported for the attached flow on a trailing flap and in its downstream asymmetric wake. The results indicate that the flow over the flap is subjected to an adverse pressure gradient. Near the trailing edge, an inflection point develops in the streamwise velocity profile and the flow approaches intermittent separation. The wake is asymmetric with a destabilizing curvature on the suction side and a stabilizing curvature on the pressure side. Streamwide variations in the near wake are primarily confined to the inner layer, and further downstream the mean velocity and turbulence quantities attain self-similar profiles. Nonequilibrium effects are present in the near wake and imply that mixing length models are not appropriate.
| Original language | English |
|---|---|
| Pages (from-to) | 897-904 |
| Number of pages | 8 |
| Journal | AIAA Journal |
| Volume | 25 |
| Issue number | 7 |
| Publication status | Published - Jul 1987 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Aerospace Engineering
Cite this
FLOW OVER A TRAILING FLAP AND ITS ASYMMETRIC WAKE. / Acharya, S.; Adair, D.; Whitelaw, J. H.
In: AIAA Journal, Vol. 25, No. 7, 07.1987, p. 897-904.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - FLOW OVER A TRAILING FLAP AND ITS ASYMMETRIC WAKE.
AU - Acharya, S.
AU - Adair, D.
AU - Whitelaw, J. H.
PY - 1987/7
Y1 - 1987/7
N2 - Detailed measurements of pressure and velocity characteristics are reported for the attached flow on a trailing flap and in its downstream asymmetric wake. The results indicate that the flow over the flap is subjected to an adverse pressure gradient. Near the trailing edge, an inflection point develops in the streamwise velocity profile and the flow approaches intermittent separation. The wake is asymmetric with a destabilizing curvature on the suction side and a stabilizing curvature on the pressure side. Streamwide variations in the near wake are primarily confined to the inner layer, and further downstream the mean velocity and turbulence quantities attain self-similar profiles. Nonequilibrium effects are present in the near wake and imply that mixing length models are not appropriate.
AB - Detailed measurements of pressure and velocity characteristics are reported for the attached flow on a trailing flap and in its downstream asymmetric wake. The results indicate that the flow over the flap is subjected to an adverse pressure gradient. Near the trailing edge, an inflection point develops in the streamwise velocity profile and the flow approaches intermittent separation. The wake is asymmetric with a destabilizing curvature on the suction side and a stabilizing curvature on the pressure side. Streamwide variations in the near wake are primarily confined to the inner layer, and further downstream the mean velocity and turbulence quantities attain self-similar profiles. Nonequilibrium effects are present in the near wake and imply that mixing length models are not appropriate.
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UR - http://www.scopus.com/inward/citedby.url?scp=0023382021&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0023382021
VL - 25
SP - 897
EP - 904
JO - AIAA Journal
JF - AIAA Journal
SN - 0001-1452
IS - 7
ER -