2002
DOI: 10.2514/2.2946
|View full text |Cite
|
Sign up to set email alerts
|

Forebody Flow Control at Conditions of Naturally Occurring Separation Asymmetry

Abstract: Extensive efforts have been directed toward the development of the means by which the ow separation asymmetry occurring on an axisymmetric slender forebody at very high angles of attack could be controlled in order to improve the agility of advanced aircraft and missiles. To control the asymmetric ow separation represents a great challenge, and only a few of the investigated ow-control concepts have led to viable solutions. The uid-mechanical processes associated with steady and alternating-pulsed blowing appl… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
5
0

Year Published

2004
2004
2016
2016

Publication Types

Select...
4
4

Relationship

0
8

Authors

Journals

citations
Cited by 15 publications
(5 citation statements)
references
References 21 publications
0
5
0
Order By: Relevance
“…The linear and stationary approach provides for a means to optimally solve for ideal surface arrangement. A surface sensor array is sought to minimize the error in (9). Once the sensor array is determined, the estimation method can be extended to non-stationary, higher order, non-linear methods.…”
Section: Linear Stochastic Estimationmentioning
confidence: 99%
See 1 more Smart Citation
“…The linear and stationary approach provides for a means to optimally solve for ideal surface arrangement. A surface sensor array is sought to minimize the error in (9). Once the sensor array is determined, the estimation method can be extended to non-stationary, higher order, non-linear methods.…”
Section: Linear Stochastic Estimationmentioning
confidence: 99%
“…Varying frequencies and amplitudes from the left and right port can help to induce either the port or the starboard asymmetric vortex state. 9,10 Closed-loop active control techniques, in which a sensor signal is used and fed back through control algorithms to compute the actuation input, have many advantages, among them flexibility and adaptability to varying flow conditions. However, to date very little research has been performed exploiting the full potential of feedback flow control on ogive forebodies.…”
mentioning
confidence: 99%
“…For instance, Ericsson et al alternated blowing between port and starboard orifices which also helped to suppress the asymmetric vortex state. 13,14 Also, Zhao et al introduced plasma actuation on a 20 • circular cone to introduce a disturbance into the flow. [15][16][17] Matsuno et al showed that plasma actuation had the capability of manipulating the vortex dynamics of slender bodies via the Coanda effect.…”
Section: Introductionmentioning
confidence: 98%
“…13 To control the existing side force on the slender body, several experimental studies have been made in the past using several active and passive control techniques such as blowing, suction, grooves, trips, nose bluntness, dimples, etc. [16][17][18][19][20][21][22]24 Out of these, the circular trip (rectangular cross-sectional ring) having a height of 5% of the local diameter and placed at X/ D of 3.5 was found to reduce the side force considerably at higher angles of attack. 19 The possible reason for the reduction in the side force with the use of the ring has been explained by Kumar and Prasad 25 through experiments and computation.…”
Section: Introductionmentioning
confidence: 99%