Xu Chun-Xiao  Professor
Contact Information
Office: Room 3312, YifuScience & TechnologyBuilding, TsinghuaUniversity
Telephone Number: +86-10-62780576 
Email Address: xucx@tsinghua.edu.cn
Biography:
Educational
·B.S., Engineering Mechanics, TsinghuaUniversity of China, 1990
·M.S., Fluid Mechanics, TSinghuaUniversity of China, 1992
·Ph.D., Fluid Mechanics, TsinghuaUniversity of China, 1995
Academic Positions
·Lecturer, Tsinghua University, 1995-1997
·Associate Professor, Tsinghua University, 1997-2007
·Full Professor, Tsinghua University, 2007-date
Professional Activity
·Editorial Board Member, Acta Aerodynamica Sinica, 2007-date
·Editorial Board Member, Physics of Gases - Theory and Applications, 2006-date
Awards/Honors
·Beijing Science and Technology Award (2nd Class, 2nd Awardee), China, 2000.
Research:
Research Description
Currently Professor Xu's research group is mainly interested in control of turbulent coherent structures to achieve drag reduction. The related research topics include understanding the physics of wall turbulence, developing reduced-order models for coherent structures, designing the control schemes with the aid of modern control theory, and evaluating the control effectiveness by direct and large-eddy simulations. Some examples are the controls of turbulent flows by active wall-deformation, compliant coating and electromagnetic forces. The group is also generally interested in the development and application of large-eddy simulation technique in various complex turbulent flows.
Projects (present)
1. Study on the model for the evolution of turbulent coherent structures and new methods for drag reduction control, National Science Fund for Distinguished Young Scholars, RMB 2,000,000, 2010-2013, XU Chun-Xiao
2. Numerical study on turbulent drag reduction control by smart skin, NSFC Project, RMB 340,000, 2008-2010, XU Chun-Xiao
Projects (done)
1. Investigation on mechanism of multi-scale transfer of turbulence in near-wall region, NSFC Project, RMB 260,000, 2005-2007, XU Chun-Xiao
2. Numerical study on active control schemes of wall turbulence, NSFC Project, RMB 180,000, 2001-2003, XU Chun-Xiao
3. Study on the behavior and dynamical mechanism of near-wall turbulence, NSFC Project, RMB 95,000, 1997-1999, XU Chun-Xiao
4. Study on numerical simulation method of plume dispersion in atmospheric boundary layer, Tsinghua-IHI Joint Research Project, RMB 180,000, 2001-2002, XU Chun-Xiao
5. Turbulence control for skin-friction reduction by active wall deformation, Tsinghua-Airbus Joint Research Project, RMB 1,220,000, 2007-2010, REN Yu-Xin
Teaching
1999-date, Fluid Mechanics, graduate and undergraduate
2007-date, Viscous Fluid Mechanics, undergraduate
2003-2010, An Introduction to Turbulence, graduate
Selected Publications
1. Ge MW, Xu CX, Cui GX, 2011. Transient response of Reynolds stress transport to opposition control in turbulent channel flow. Science in China, 54(2): 320-328.
2. Xu CX, 2010. Multi-scale analysis of SGS stress and dissipation in turbulent channel flow. Acta Mechanica Sinica, 26(1): 81-90.
3. Guo Y, Xu CX, Cui GX, Zhang ZS, 2007. Large eddy simulation of scalar turbulence using a new subgrid eddy diffusivity model. International Journal of Heat and Fluid Flow, 28: 268-274.
4. Cui GX, Xu CX, Fang L, Shao L, Zhang ZS, 2007. A new subgrid eddy-viscosity model for large-eddy simulation of anisotropic turbulence. Journal of Fluid Mechanics, 582: 377–397.
5. Xu CX, Li L, Cui GX, Zhang ZS, 2006. Multi-scale analysis of near-wall turbulence intermittency. Journal of Turbulence, 7(25): 1-15.
6. Xu CX, Huang WX, 2005. Transient Response of Reynolds Stress Transport to Spanwise Wall Oscillation in a Turbulent Channel Flow. Physics of Fluids, 17(1): ART. No. 018101.
7. Xu CX, Choi JI, Sung HJ, 2003. Identification and control of Taylor-Gortler vortices in turbulent curved channel flow. AIAA Journal, 41(12):2387-2393.
8. Choi JI, Xu CX, Sung HJ, 2002. Drag reduction by spanwise wall oscillation in wall-bounded turbulent flows. AIAA Journal, 40(5): 842-850.
9. Xu CX, Choi JI, Sung HJ, 2002. Suboptimal control for drag reduction in turbulent pipe flow. Fluid Dynamic Research, 30(4): 217-231.
10.Xu CX, Zhang ZS, Toonder JMJ, Nieuwstadt FTM, 1996. Origin of high kurtosis levels in the viscous sublayer. Direct numerical simulation and experiments. Physics of Fluids, 8(7):1938-1944.