Abstract
The wing rock motion is frequently suffered by a wing-body configuration with low swept wing at high angle of attack. It is found from our experimental study that the tip perturbation and wing longitudinal locations affect significantly the wing rock motion of a wing-body. The natural tip perturbation would make the wing rock motion of a non-deterministic nature and an artificial mini-tip perturbation would make the wing rock motion deterministic. The artificial tip perturbation would, as its circumferential location is varied, generate three different types of motion patterns: (1) limit cycle oscillation, (2) irregular oscillation, (3) equilibrium state with tiny oscillation. The amplitude of rolling oscillation corresponding to the limit cycle oscillatory motion pattern is decreased with the wing location shifting downstream along the body axis.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Katz J.: Wing/vortex interactions and wing rock. Progr. Aerosp. Sci. 35, 727–750 (1999)
Nelson R.C., Pelletier A.: The unsteady aerodynamics of slender wings and aircraft undergoing large amplitude maneuvers. Progr. Aerosp. Sci. 39, 185–248 (2003)
Ng T.T., Malcolm G.N., Lewis L.C.: Experimental study of vortex flows over delta wings in wing-rock motion. J. Aircr. 29(4), 598–603 (1992)
Brandon J.M., Nguyen L.T.: Experimental study of effects of forebody geometry on high angle-of-attack stability. J. Aircr. 25(7), 591–597 (1988)
Ericsson L.E.: Review of forebody-induced wing rock. J. Aircr. 33(2), 253–259 (1996)
Degani D., Tobak M.: Experimental study of controlled tip disturbance effect on flow asymmetry. Phys. Fluids 4(12), 2825–2832 (1992)
Deng X.Y., Wang G., Chen X.R. et al.: A physical model of asymmetric vortices flow structure in regular state over slender body at high angle of attack. Sci. China E 46(6), 561–573 (2003)
Chen X.R., Deng X.Y., Wang Y.K. et al.: Influence of nose perturbations on behaviors of asymmetric vortices over slender body. Acta Mech. Sinica 18(6), 581–593 (2002)
Williams II, D.L., Nelson, R.C.: Influence of wing separation on forebody induced/driven rock. AIAA paper 95-3441-CP (1995)
Author information
Authors and Affiliations
Corresponding author
Additional information
The project was supported by the National Natural Science Foundation of China (10432020, 10872019 and 10702004).
Rights and permissions
About this article
Cite this article
Wang, B., Deng, XY., Ma, BF. et al. Effects of tip perturbation and wing locations on rolling oscillation induced by forebody vortices. Acta Mech Sin 26, 787–791 (2010). https://doi.org/10.1007/s10409-010-0358-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10409-010-0358-z