Blended-Wing-Body Low-Speed Flight Dynamics: Summary of Ground Tests and Sample Results (Invited)

2009 ◽  
Author(s):  
Dan Vicroy
Keyword(s):  
Flight Dynamics ◽  
Low Speed ◽  
Blended Wing Body

Stability Features of the Saucer-Shaped Blend-Wing-Body Aircraft

2013 ◽  
Vol 712-715 ◽  
pp. 1307-1311
Author(s):  
Lin Lin Wang ◽  
Ge Gao
Keyword(s):  
Perturbation Theory ◽  
Longitudinal Mode ◽  
Flight Dynamics ◽  
Aerodynamic Characteristics ◽  
Linear Perturbation ◽  
Low Speed ◽  
Similarities And Differences ◽  
Linear Perturbation Theory ◽  
Dutch Roll ◽  
Directional Flight

The saucer-shaped aircraft is a novel aircraft adopting blend-wing-body configuration. The linear perturbation theory based on the classic flight dynamics was used to analyze the longitudinal, lateral and directional flight qualities of the saucer-shaped aircraft under low speed conditions. The flight qualities were given. Meanwhile the aerodynamic characteristics of the saucer-shaped aircraft, the conventional aircraft and the flying wing aircraft were also contrasted to discuss their similarities and differences. The results show that the saucer-shaped aircraft has stable longitudinal mode, rollover mode and Dutch roll mode. The spiral mode is unstable. The saucer-shaped aircraft exhibits superior flight qualities and excellent comprehensive performances.

An Integrated Low-Speed Aeroelastic-Flight-Dynamics Framework for Modeling Supersonic Aircraft

2022 ◽  
Author(s):  
Thiago A. Guimarães ◽  
Carlos E. Cesnik ◽  
Ilya V. Kolmanovsky
Keyword(s):  
Flight Dynamics ◽  
Low Speed ◽  
Supersonic Aircraft

Low speed longitudinal aerodynamics of a blended wing-body re-entry vehicle

2020 ◽  
Vol 107 ◽  
pp. 106303
Author(s):  
Antonio Viviani ◽  
Andrea Aprovitola ◽  
Luigi Iuspa ◽  
Giuseppe Pezzella
Keyword(s):  
Low Speed ◽  
Blended Wing Body

The Effect of Canard on Aerodynamics of Blended Wing Body

2011 ◽  
Vol 110-116 ◽  
pp. 4156-4160 ◽  
Author(s):  
M. Ali Zurriati ◽  
Kuntjoro Wahyu ◽  
Wirachman Wisnoe ◽  
E.M Nasir Rizal
Keyword(s):  
Wind Tunnel ◽  
Deflection Angle ◽  
Wind Tunnel Testing ◽  
Scaled Model ◽  
Low Speed ◽  
Surface Deflection ◽  
Blended Wing Body ◽  
Drag Ratio ◽  
Low Speed Wind Tunnel ◽  
Lift To Drag Ratio

This paper describes the wind tunnel testing of a Blended Wing Body (BWB) with rectangular canards and twisted wing (Baseline II E2 configuration) developed in Universiti Teknologi MARA (UiTM). The experiment work was carried out in UiTM low speed wind tunnel using 1:6 scaled model of BWB at Mach 0.1. The testing is conducted for canard’s deflection angle between 0° to +20. The results show by adding the canard surface to the BWB’s body, at 12 degree and higher angles of attack,α there will be a slight increment in lift. Maximum lift-to-drag ratio decreases with increasing canard surface deflection. Also, by adding the canard surface, the value of moment at zero lift,CM,0 is increased.

Wake Measurements on Blended Wing Body with Gurney Flaps in Low Speed Flows

2019 ◽  
Author(s):  
Tatsuya Yamada ◽  
Masato Taguchi ◽  
Nguyen Thai Duong ◽  
Masashi Kashitani ◽  
Kazuhiro Kusunose ◽  
...  
Keyword(s):  
Low Speed ◽  
Gurney Flaps ◽  
Blended Wing Body

New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

1990 ◽  
Vol 48 (3) ◽  
pp. 582-583
Author(s):  
S. F. Hayes ◽  
M. D. Corwin ◽  
T. G. Schwan ◽  
D. W. Dorward ◽  
W. Burgdorfer
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Structural Characterization ◽  
Negative Staining ◽  
Low Speed ◽  
Thin Sectioning ◽  
Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

Reopening of Chronic Coronary Occlusions by Low-Speed Rotational Angioplasty

1994 ◽  
Vol 12 (4) ◽  
pp. 623-629 ◽  
Author(s):  
Andreas Hartmann ◽  
Martin Kaltenbach
Keyword(s):  
Low Speed
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