Aileron Effectiveness at High Angles of Attack: Interaction with Forebody Blowing

Autor:	Nelson Pedreiro, Stephen M. Rock, Yuji Takahara
Rok vydání:	1999
Předmět:	Engineering Delta wing Angle of attack business.industry Aerospace Engineering Structural engineering Flight control surfaces law.invention Fuselage Aileron Control theory Deflection (engineering) law business Actuator Roll moment
Zdroj:	Journal of Aircraft. 36:981-986
ISSN:	1533-3868 0021-8669
DOI:	10.2514/2.2539
Popis:	An experimental investigation has been conducted to determine the effectiveness of ailerons in the high angleof-attack regime in the presence of forebody tangential blowing. Forebody blowing generates both roll and yaw moments, but independent control of these moments requires the use of a second actuator. Results from this study support the idea of using ailerons and forebody blowing for aircraft roll and yaw control at high angles of attack. Experiments were conducted at 45-deg nominal incidence angle, using a wind-tunnel model cone guration consisting of a cone ‐cylinder fuselage and a delta wing. The effectiveness of the ailerons as a function of aileron area has been determined. It is shown that increasing aileron size beyond a certain limit produces only marginal increase in the capability of generating roll moment. Cross-coupling effects on pitch and yaw moments due to aileron dee ection and the combined effects of aileron dee ection and blowing are presented. Results show that the effects of starboard and port-side control surfaces are nearly uncoupled.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b92e6257e0fb57f80544c673dd621aa2 https://doi.org/10.2514/2.2539 Zobrazit plný text záznamu