Control of multiple vortices over a double delta wing

X. Zhang, Z. Wang, I. Gursul

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Active and passive control of leading-edge vortices over a 70°/50° double delta wing by means of jet blowing and bleed were studied experimentally in a closed-loop water tunnel using particle image velocimetry (PIV) measurements. Depending on the jet location and yaw angle, the strake vortices and the wing vortices could be separated further away from each other thus resulting in weak interactions or the interactions between the strake and wing vortices could be intensified thus leading to an earlier merge. Ingestion of jet turbulence into the vortices appears to promote merging. Evidence suggests that significant forces/moments could be produced even at low momentum coefficients. Passive bleed with estimated momentum coefficients of the order of 0.1% can also promote vortex merging. Secondary vortex can be strengthened and alter the vortical flow structure over the delta wing. It was found that bleed is more effective at lower wing incidences.

Original languageEnglish
Publication statusPublished - 2017
Event47th AIAA Fluid Dynamics Conference, 2017 - Denver, USA United States
Duration: 5 Jun 20179 Jun 2017

Conference

Conference47th AIAA Fluid Dynamics Conference, 2017
CountryUSA United States
CityDenver
Period5/06/179/06/17

Fingerprint

Vortex flow
Merging
Momentum
Flow structure
Blow molding
Velocity measurement
Tunnels
Turbulence
Water

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)

Cite this

Zhang, X., Wang, Z., & Gursul, I. (2017). Control of multiple vortices over a double delta wing. Paper presented at 47th AIAA Fluid Dynamics Conference, 2017, Denver, USA United States.

Control of multiple vortices over a double delta wing. / Zhang, X.; Wang, Z.; Gursul, I.

2017. Paper presented at 47th AIAA Fluid Dynamics Conference, 2017, Denver, USA United States.

Research output: Contribution to conferencePaper

Zhang, X, Wang, Z & Gursul, I 2017, 'Control of multiple vortices over a double delta wing' Paper presented at 47th AIAA Fluid Dynamics Conference, 2017, Denver, USA United States, 5/06/17 - 9/06/17, .
Zhang X, Wang Z, Gursul I. Control of multiple vortices over a double delta wing. 2017. Paper presented at 47th AIAA Fluid Dynamics Conference, 2017, Denver, USA United States.
Zhang, X. ; Wang, Z. ; Gursul, I. / Control of multiple vortices over a double delta wing. Paper presented at 47th AIAA Fluid Dynamics Conference, 2017, Denver, USA United States.
@conference{0585e3bddf6144609d91cac77a1d3f00,
title = "Control of multiple vortices over a double delta wing",
abstract = "Active and passive control of leading-edge vortices over a 70°/50° double delta wing by means of jet blowing and bleed were studied experimentally in a closed-loop water tunnel using particle image velocimetry (PIV) measurements. Depending on the jet location and yaw angle, the strake vortices and the wing vortices could be separated further away from each other thus resulting in weak interactions or the interactions between the strake and wing vortices could be intensified thus leading to an earlier merge. Ingestion of jet turbulence into the vortices appears to promote merging. Evidence suggests that significant forces/moments could be produced even at low momentum coefficients. Passive bleed with estimated momentum coefficients of the order of 0.1{\%} can also promote vortex merging. Secondary vortex can be strengthened and alter the vortical flow structure over the delta wing. It was found that bleed is more effective at lower wing incidences.",
author = "X. Zhang and Z. Wang and I. Gursul",
year = "2017",
language = "English",
note = "47th AIAA Fluid Dynamics Conference, 2017 ; Conference date: 05-06-2017 Through 09-06-2017",

}

TY - CONF

T1 - Control of multiple vortices over a double delta wing

AU - Zhang, X.

AU - Wang, Z.

AU - Gursul, I.

PY - 2017

Y1 - 2017

N2 - Active and passive control of leading-edge vortices over a 70°/50° double delta wing by means of jet blowing and bleed were studied experimentally in a closed-loop water tunnel using particle image velocimetry (PIV) measurements. Depending on the jet location and yaw angle, the strake vortices and the wing vortices could be separated further away from each other thus resulting in weak interactions or the interactions between the strake and wing vortices could be intensified thus leading to an earlier merge. Ingestion of jet turbulence into the vortices appears to promote merging. Evidence suggests that significant forces/moments could be produced even at low momentum coefficients. Passive bleed with estimated momentum coefficients of the order of 0.1% can also promote vortex merging. Secondary vortex can be strengthened and alter the vortical flow structure over the delta wing. It was found that bleed is more effective at lower wing incidences.

AB - Active and passive control of leading-edge vortices over a 70°/50° double delta wing by means of jet blowing and bleed were studied experimentally in a closed-loop water tunnel using particle image velocimetry (PIV) measurements. Depending on the jet location and yaw angle, the strake vortices and the wing vortices could be separated further away from each other thus resulting in weak interactions or the interactions between the strake and wing vortices could be intensified thus leading to an earlier merge. Ingestion of jet turbulence into the vortices appears to promote merging. Evidence suggests that significant forces/moments could be produced even at low momentum coefficients. Passive bleed with estimated momentum coefficients of the order of 0.1% can also promote vortex merging. Secondary vortex can be strengthened and alter the vortical flow structure over the delta wing. It was found that bleed is more effective at lower wing incidences.

UR - http://www.scopus.com/inward/record.url?scp=85023603318&partnerID=8YFLogxK

M3 - Paper

ER -