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Experimental Investigations on the Phantom Yaw Effect on a Maneuvering Slender Body

Wysocki, Oliver and Schülein, Erich (2015) Experimental Investigations on the Phantom Yaw Effect on a Maneuvering Slender Body. Journal of Spacecraft and Rockets, 52 (1), pp. 264-274. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.A32885 ISSN 0022-4650

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/pdf/10.2514/1.A32885

Abstract

Phantom Yaw can be induced by e.g. small perturbations or deviations in geometry which cause an asymmetric separation. Experiments were conducted investigating this phenomenon under both static (no model motion) and dynamic (pitching motions at almost realistic pitch rates) conditions. The tests were performed at M = 0.8 and ReD = 4.3*105 using a generic missile configuration. The effect of small geometric deviations on the Phantom Yaw was studied by changing the model’s roll angle. Additionally, the possibility of triggering asymmetric vortices by a fixed, asymmetric transition at the model’s nose and shoulder was investigated. Indeed, the asymmetry can be triggered but the mechanisms are complex and the effects not always distinct. Furthermore, two Phantom-Yaw-Reduction devices were tested. These were “conventional strakes“ and “aerostrakes“ (two symmetrical side-jets at the model’s shoulder). In combination with a fixed asymmetric transition, both devices revealed deficiencies and were not able to really reduce/suppress Phantom Yaw. Without this fixed transition, the aerostrakes worked well under static conditions but a reduction of the yawing moment was not always achieved within the maneuver simulations. With conventional strakes, no significant Phantom Yaw was measured under both static and dynamic conditions.

Item URL in elib:https://elib.dlr.de/84752/
Document Type:Article
Additional Information:Published online: 23 Sept. 2014, January - February 2015
Title:Experimental Investigations on the Phantom Yaw Effect on a Maneuvering Slender Body
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wysocki, Oliveroliver.wysocki (at) dlr.deUNSPECIFIED
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Spacecraft and Rockets
Refereed publication:Yes
Open Access:No
In DOAJ:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:52
DOI :10.2514/1.A32885
Page Range:pp. 264-274
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0022-4650
Status:Published
Keywords:Phantom Yaw, Maneuver Simulation, Flow Control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:08 Dec 2014 12:40
Last Modified:08 Mar 2018 18:45

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