吴雪松，教授、博导。执教于天津大学机械工程学院。 主要学历: 1985.10-1988.7 在天津大学力学系攻读硕士学位 1988.10-1991.12 在英国帝国理工学院数学系攻读博士学位 1992.3-1993.9 在英国帝国理工学院数学系从事... 基本内容吴雪松，教授、博导。执教于天津大学机械工程学院。 主要学历: 1985.10-1988.7 在天津大学力学系攻读硕士学位 1988.10-1991.12 在英国帝国理工学院数学系攻读博士学位 1992.3-1993.9 在英国帝国理工学院数学系从事博士后研究 主要学术经历:1993.10-1999.9 在英国帝国理工学院数学系任讲师。 1999.9-至今 在英国帝国理工学院数学系任高级讲师。 2001.10-至今 在天津大学力学系任特聘教授。 主要研究方向: 非线性流动稳定性 层流－湍流转捩的理论研究 主要讲授课程:流体力学 高等常微分方程 微分方程的差分方法 复变函数及变分法 高雷诺数流动及边界层理论 主要学术成就、奖励及荣誉: 1. 发展了次谐共振的数学描述。推导的幅值方程可以同时适用两类不同不稳定波所形成的三波共振问题 2. 提出"锁相位模态相互作用"和"混合模态三波共振"的模型。证明了三维扰动波的瞬态增长，并最终使 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 主要科研项目及角色: 1994年，课题"Nonlinear Interaction of Instability Modes in Stratified Shear Flows: Vortex Roll-up and Pairing"获Nuffield Foundation资助。项目经费:3,000英磅。 1997年，课题"Nonlinear Modal Interactions in Transitional Flows"获英国EPSRC资助。项目经费:42,218英磅。 al flows"获英国皇家学会 (The Royal Society) 资助。项目经费:7,042英磅。 代表性论著: 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 |
