Asymmetric Vortex Wake Development on Missiles at High Angles of Attack

Deffenbaugh, F. D.; Koerne, W. G.

doi:10.2514/3.57174

Cited by 19 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several interesting analytical and semiempirical modeling techniques for predicting these side forces have been explored recently (e.g., Refs. 59,[64][65][66][67][68][69][70][71]. Most of these techniques are based on an impulsive flow analogy between the leeward flow field cf a .ircular body at angle of attack and the developing wake behind an impulsively started cylinder in crossflow.…”

Section: Experimental Side Forces On Models At Zero Sideslipmentioning

confidence: 99%

High angle of attack aerodynamics

Stollery

1992

Journal of Atmospheric and Terrestrial Physics

View full text Add to dashboard Cite

Section: Experimental Side Forces On Models At Zero Sideslipmentioning

confidence: 99%

High angle of attack aerodynamics

Stollery

1992

Journal of Atmospheric and Terrestrial Physics

View full text Add to dashboard Cite

“…Vortex development on missile bodies has been an active research topic since 1970s. Early research focused on asymmetric vortex shedding, which causes out-of-plane side force in high angle of attack conditions [1][2][3][4][5]. The angular limits of this behavior were analyzed by several researchers [5,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Computational Mesh on the Prediction of Vortex Interactions about a Generic Missile Airframe

Dikbaş

Schnepf

Tormalm

et al. 2022

AIAA SCITECH 2022 Forum

View full text Add to dashboard Cite

A research program has been underway for four years to study vortex interaction aerodynamics that are relevant to military air vehicle performance. The program has been conducted under the auspices of the NATO Science and Technology Organization (STO), Applied Vehicle Technology (AVT) panel by a Task Group with the identification of AVT-316. The Missile Facet of this group has concentrated their work on the vortical flow field around a generic missile airframe and its prediction via computational methods. This paper focuses on mesh-related effects and RANS simulations. Simulated vortex characteristics

show abstract

“…Previous experimental investigations of the flow behind a missile at high angle of attack have shown that the asymmetric vortex wake and resulting side force is sensitive to roll angle and tunnel turbulence level (1)(2)(3)(4). In addition, it is known that for some angles of attack, the vortices may be bi-stable; the asymmetric vortex structure may suddenly switch from one stable state to another (3)(4)(5).…”

mentioning

confidence: 99%

“…In addition, it is known that for some angles of attack, the vortices may be bi-stable; the asymmetric vortex structure may suddenly switch from one stable state to another (3)(4)(5). The sensitivity of the vortex structure has so far prevented the development of adequate prediction techniques for angles of attack between about 35 and 70 degrees.…”

mentioning

confidence: 99%