Physics – Classical Physics
Scientific paper
2009-12-17
Journal Of Aircraft Volume: 42 Issue: 1, 2005, p. 148-157. ISSN: 0021-8669
Physics
Classical Physics
44 pages, 15 figures
Scientific paper
Present work deals with the dynamics of vehicles which intentionally operate in the ground proximity. The dynamics in ground effect is influenced by the vehicle orientation with respect to the ground, since the aerodynamic force and moment coefficients, which in turn depend on height and angle of attack, also vary with the Euler angles. This feature, usually neglected in the applications, can be responsible for sizable variations of the aircraft performance and stability. A further effect, caused by the sink rate, determines unsteadiness that modifies the aerodynamic coefficients. In this work, an analytical formulation is proposed for the force and moment calculation in the presence of the ground and taking the aircraft attitude and sink rate into account. The aerodynamic coefficients are firstly calculated for a representative vehicle and its characteristics in ground effect are investigated. Performance and stability characteristics are then discussed with reference to significant equilibrium conditions, while the non-linear dynamics is studied through the numerical integration of the equations of motion.
No associations
LandOfFree
Performance and Stability of a Winged Vehicle in Ground Effect does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Performance and Stability of a Winged Vehicle in Ground Effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance and Stability of a Winged Vehicle in Ground Effect will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-685588