Abstract
In this paper, a parametric study is conducted to optimize a business jet using supersonic bi-directional (SBiDir) flying wing (FW)aiming at achieving high aerodynamic efficiency and low sonic boom. The SBiDir-FW concept has a symmetric planform about both longitudinal and span axes, allowing the plane to achieve high efficiency at both supersonic and subsonic by rotating by 90° in flight. With this parametric study, the L/Dp achieves 15 at M=1.6, 16 at M=2.0, whereas the sonic boom remains smooth without N-wave. The smooth peak over pressure value is 0.3 psf at M=1.6, 0.4 psf at M=2.0. It indicates that the conventional N-wave could be replaced by a strong acoustic wave, which generates a much less impulsive force and hence noise. The supersonic aspect ratio of the present configuration is 0.33 and the subsonic aspect ratio is 33, which ensures high performance at both supersonic and subsonic. The study shows that the sharp and long nose configuration with ultra-slender body is favorable to both high aerodynamic efficiency and low sonic boom. The numerical results demonstrate that the SbiDir-FW could be a very promising concept for supersonic flight. Further improvement can still be made by using systematic automated design optimization.
| Original language | English (US) |
|---|---|
| Title of host publication | 29th AIAA Applied Aerodynamics Conference 2011 |
| Publisher | American Institute of Aeronautics and Astronautics Inc. |
| ISBN (Print) | 9781624101458 |
| DOIs | |
| State | Published - Jan 1 2011 |
| Event | 29th AIAA Applied Aerodynamics Conference 2011 - Honolulu, HI, United States Duration: Jun 27 2011 → Jun 30 2011 |
Publication series
| Name | 29th AIAA Applied Aerodynamics Conference 2011 |
|---|
Other
| Other | 29th AIAA Applied Aerodynamics Conference 2011 |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 6/27/11 → 6/30/11 |
Fingerprint
ASJC Scopus subject areas
- Aerospace Engineering
- Mechanical Engineering
Cite this
Supersonic bi-directional flying wing configuration with low sonic boom and high aerodynamic efficiency. / Berger, Clemence; Carmona, Kevin; Espinal, Daniel; Im, Hong Sik; Zha, Ge Cheng.
29th AIAA Applied Aerodynamics Conference 2011. American Institute of Aeronautics and Astronautics Inc., 2011. (29th AIAA Applied Aerodynamics Conference 2011).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Supersonic bi-directional flying wing configuration with low sonic boom and high aerodynamic efficiency
AU - Berger, Clemence
AU - Carmona, Kevin
AU - Espinal, Daniel
AU - Im, Hong Sik
AU - Zha, Ge Cheng
PY - 2011/1/1
Y1 - 2011/1/1
N2 - In this paper, a parametric study is conducted to optimize a business jet using supersonic bi-directional (SBiDir) flying wing (FW)aiming at achieving high aerodynamic efficiency and low sonic boom. The SBiDir-FW concept has a symmetric planform about both longitudinal and span axes, allowing the plane to achieve high efficiency at both supersonic and subsonic by rotating by 90° in flight. With this parametric study, the L/Dp achieves 15 at M=1.6, 16 at M=2.0, whereas the sonic boom remains smooth without N-wave. The smooth peak over pressure value is 0.3 psf at M=1.6, 0.4 psf at M=2.0. It indicates that the conventional N-wave could be replaced by a strong acoustic wave, which generates a much less impulsive force and hence noise. The supersonic aspect ratio of the present configuration is 0.33 and the subsonic aspect ratio is 33, which ensures high performance at both supersonic and subsonic. The study shows that the sharp and long nose configuration with ultra-slender body is favorable to both high aerodynamic efficiency and low sonic boom. The numerical results demonstrate that the SbiDir-FW could be a very promising concept for supersonic flight. Further improvement can still be made by using systematic automated design optimization.
AB - In this paper, a parametric study is conducted to optimize a business jet using supersonic bi-directional (SBiDir) flying wing (FW)aiming at achieving high aerodynamic efficiency and low sonic boom. The SBiDir-FW concept has a symmetric planform about both longitudinal and span axes, allowing the plane to achieve high efficiency at both supersonic and subsonic by rotating by 90° in flight. With this parametric study, the L/Dp achieves 15 at M=1.6, 16 at M=2.0, whereas the sonic boom remains smooth without N-wave. The smooth peak over pressure value is 0.3 psf at M=1.6, 0.4 psf at M=2.0. It indicates that the conventional N-wave could be replaced by a strong acoustic wave, which generates a much less impulsive force and hence noise. The supersonic aspect ratio of the present configuration is 0.33 and the subsonic aspect ratio is 33, which ensures high performance at both supersonic and subsonic. The study shows that the sharp and long nose configuration with ultra-slender body is favorable to both high aerodynamic efficiency and low sonic boom. The numerical results demonstrate that the SbiDir-FW could be a very promising concept for supersonic flight. Further improvement can still be made by using systematic automated design optimization.
UR - http://www.scopus.com/inward/record.url?scp=85067321460&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067321460&partnerID=8YFLogxK
U2 - 10.2514/6.2011-3663
DO - 10.2514/6.2011-3663
M3 - Conference contribution
AN - SCOPUS:85067321460
SN - 9781624101458
T3 - 29th AIAA Applied Aerodynamics Conference 2011
BT - 29th AIAA Applied Aerodynamics Conference 2011
PB - American Institute of Aeronautics and Astronautics Inc.
ER -