The aerodynamics analysis on cambered fuselage model
There various factors gives influence in determining the fuselage shapes, such as the payload, cockpit, wing and tail placements or in manner up and down loading the payload for a cargo aircraft. These factors may come up the fuselage is no longer as symmetrical fuselage but represent as a cambered...
| Main Authors: | , , |
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| Format: | Article |
| Published: |
Trans Tech Publications Inc
2014
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| Online Access: | http://dx.doi.org/10.4028/www.scientific.net/AMM.660.492 http://dx.doi.org/10.4028/www.scientific.net/AMM.660.492 http://eprints.uthm.edu.my/6471/1/The_Aerodynamics_Analysis_on_Cambered_Fuselage_Model.pdf |
| Summary: | There various factors gives influence in determining the fuselage shapes, such as the
payload, cockpit, wing and tail placements or in manner up and down loading the payload for a
cargo aircraft. These factors may come up the fuselage is no longer as symmetrical fuselage but
represent as a cambered fuselage. As results the lift coefficient as well as its pitching moment
coefficient is no longer equal to zero as the angle of attack goes to zero. Basically the manner how
to determine the fuselage aerodynamics characteristics for cambered fuselage can be done in similar
way as in the case of symmetrical fuselage by simply replacing the angle of attack α term with (α-
αL=0), where αL=0 represent the angle of attack at zero lift. The present work use a similar manner in
determining the zero lift angle of attack as it had been used in DATCOM software. To investigate
the effect of camber on the aerodynamics characteristic fuselage, the present work use a fuselage
model with a circular cross section where the location of center of the circle placed along the
fuselage’s camber line. The fuselage’s camber line defined according to the definition of camber
line of NACA airfoils. Aerodynamics analysis on over various fuselage models indicate that the
maximum camber line thickness and their position give a significant influent to the fuselage
aerodynamics characteristics. |
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