三维波按超指数规律放大的机理。

3. 提出由斜波直接引起转捩的理论。统一两种现有的理论，系统地研究了一对三维波从线性，经过一系

列弱非线性，最终到强非线性，引起转捩的演化过程。

4. 在边界层的'接受性'机理方面提出了来流中的声波和漩涡涨落直接激发不稳定波的机理。

1. Wu, X & Zhou, H. Linear instability of turbulent boundary layer as a mechanism for the

generation of large scale coherent structures. Chinese Science Bulletin English Edition,

34(20): 1685-1688, 1989

2. Wu, X. The nonlinear evolution of high-frequency resonant-triad waves in Stokes-Layers

at high Reynolds numbers. J. Fluid Mech. 245: 553-597, 1992

3. Wu, X., Lee, S.S. & Cowley, S.J. On the weakly nonlinear instability of shear flows to

pairs of oblique waves: the Stokes layer as a paradigm. J. Fluid Mech. 253: 681-720, 1993

Also published as NASA Technical Memorandum: NASA TM-105918: 92-20, 1992

4. Wu, X. On critical-layer and diffusion-layer nonlinearity in the three-dimensional stage of

boundary-layer transition. Proc. Roy. Soc. Lon. A443: 95-106, 1993

5. Mankbadi, R.R., Wu, X. & Lee, S.S. A critical-layer analysis of resonant triad in Blasius

boundary layer transition: nonlinear interactions. J. Fluid Mech. 256: 85-106, 1993

6. Wu, X. Nonlinear temporal-spatial modulation of near-planar Rayleigh waves in shear

flows: formation of streamwise vortices. J. Fluid Mech. 256 : 685-719, 1993

7. Wu, X. & Cowley, S.J. On the nonlinear evolution of instability modes in unsteady shear

layers: the Stokes layer as a paradigm. Q. J. Mech. Appl. Math. 48: 159-188, 1995

8. Wu, X. 1995 Viscous effects on fully coupled resonant-triad interactions: an analytical

approach. J. Fluid Mech. 292: 377-407, 1995

9. Wu, X. On an active resonant triad of mixed modes in symmetric shear flows: a plane

wake as a paradigm. J. Fluid Mech. 317: 337-368, 1996

10. Wu, X. & Stewart, P.A. Interaction of phase-locked modes: a new mechanism for the

rapid growth of three-dimensional disturbances. J. Fluid Mech. 316: 335-372, 1996

11. Wu, X., Stewart, P.A. & Cowley, S.J. On the weakly nonlinear development of Tollmien-

Schlichting wavetrains in boundary layers. J. Fluid Mech. 323: 133-171, 1996

12. Elgin, J.N. & Wu, X. Stability of cellular states of the Kuramoto-Sivashinsky equation.

SIAM J. Appl. Maths. 56: 1621-1638, 1996

13. Wu, X., Leib, S.J. & Goldstein, M.E. On the nonlinear evolution of a pair of oblique

Tollmien-Schlichting waves in boundary layers. J. Fluid Mech. 340: 361-394, 1997

14. Wu, X. Generation of Tollmien-Schlichting waves by convecting gusts interacting with

sound. J. Fluid Mech. 397: 285-316, 1999

15. Wu, X. Receptivity of boundary layers with distributed roughness to vortical and

acoustic disturbances: a second-order asymptotic theory and comparison with

experiments. J. Fluid Mech. 431: 91-133, 2001

16. Wu, X. On local boundary-layer receptivity to vortical disturbances in the free

stream. J. Fluid Mech. 449: 373-393, 2001

17. Wu, X. Generation of sound and instability waves due to unsteady suction and

injection. J. Fluid Mech., 453: 289-313, 2002

18. Floryan, J.M., Szumbarski, J. & Wu, X. Stability of flow in a channel with vibrating

walls. Phys. Fluids 14: 3927-2936, 2002

19. Wu, X. & Luo, J.S. Linear and nonlinear instability of a Blasius boundary layer perturbed

by streamwise vortices. Part I: Steady streaks. J. Fluid Mechanics, 2002

20. Wu, X. & Choudhari, M. Linear and nonlinear instability of a Blasius boundary layer

perturbed by streamwise vortices. Part II: Intermittent instability induced by long-wavelength

Klebanoff modes. J. Fluid Mechanics, 2002

21. Wu, X., Wang, M., Moin, P., et al, Combustion instability due to nonlinear

acoustic-flame interaction. J. Fluid Mechanics, 2002

22. Wu, X., Stewart, P.A. & Jennings, M.J. On the role of phase-locked interaction of

Tollmien-Schlichting waves in boundary-layer transition. J. Fluid Mechanics, 2002