Yiyang Sun

Assistant Professor

Mechanical and Aerospace Engineering

212 Link Hall




  • Ph.D. Florida State University, Tallahassee, 2017
  • B.S. Huazhong University of Science & Technology, Wuhan, 2012

Research Interests:

  • Computational Fluid Dynamics
  • Flow Control
  • Unsteady Aerodynamics
  • Modal/Non-modal Analysis
  • Data Science

Current Research:

Dr. Sun’s research interests focus on understanding the underlying physics of fluid flows and designing physics-driven control strategies using computational fluid dynamics, modal/non-modal analysis, and data science. The ability to control fluid flow behaviors can lead to quiet, economical, and efficient systems in fluid mechanics and aerodynamics. Because of high dimensionality, strong nonlinearity, and complexity in fluid physics, design of effective control strategies can be challenging. Dr. Sun’s research focuses on uncovering underlying physics of complex fluid flows using the cutting-edge technique of modal analysis, such as dynamic mode decomposition, global stability analysis, and resolvent analysis. The insights obtained from these analyses provide guidance for physics-driven control designs.


  • Amelia Earhart Fellow, Zonta International, 2016
  • Travel Award for Excellence in Graduate Research, APS, 2013
  • Excellent Student of Academic Records Scholarship, HUST, 2009-2011

Select Publications:

Liu, Q., Sun, Y., Ukeiley, L. S., Cattafesta, L. N., and Taira, K., “Unsteady control of supersonic turbulent cavity flow based on resolvent analysis,” Journal of Fluid Mechanics, in press, 2021.

Yao, H., Sun, Y., and Hemati, M. S., “Feedback control of transitional shear flows: Sensor selection for performance recovery,” in review, 2020.

Sun, Y., Liu, Q., Cattafesta, L. N., Ukeiley, L. S., and Taira, K., “Resolvent analysis of compressible laminar and turbulent cavity flows,” AIAA Journal (invited), Vol. 58, No. 3, 2020.

Taira, K., Hemati, M. S., Brunton, S. L., Sun, Y., Duraisamy, K., Bagheri, S., Dawson, S. T. M., and Yeh, C-A., “Modal analysis of fluid flows: application and outlook,” AIAA Journal (invited), Vol. 58, No. 3, 2020.

Sun, Y. and Hemati, M. S., “Feedback control for transition suppression in direct numerical simula- tions of channel flow,” Energies (invited), Vol. 12, No. 4217, 2019.

Sun, Y., Liu, Q., Cattafesta, L. N., Ukeiley, L. S., and Taira, K., “Effects of sidewalls and leading-edge blowing on flows over long rectangular cavities,” AIAA Journal, Vol. 57, No. 1, pp. 106-119, 2019.

Zhang, Y., Sun, Y., Arora, N., Cattafesta, L. N., Taira, K., and Ukeiley, L. S., “Suppression of cavity oscillations via three-dimensional steady blowing,” AIAA Journal, Vol. 57, No. 1, pp. 90-105, 2019.

Edstrand, A. M., Sun, Y., Schmid, P. J., Taira, K., and Cattafesta, L. N., “Active attenuation of a trailing vortex inspired by a parabolized stability analysis,” Journal of Fluid Mechanics, Vol. 855, R2, 2018.

Sun, Y., Taira, K., Cattafesta, L. N., and Ukeiley, L. S., “Biglobal instabilities of compressible open cavity flow,” Journal of Fluid Mechanics, Vol. 826, pp. 270-301, 2017

Sun, Y., Taira, K., Cattafesta, L. N., and Ukeiley, L. S., “Spanwise effects on instabilities of compress- ible flow over a long rectangular cavity,” Theoretical and Computational Fluid Dynamics (invited), Vol. 31, Issue 5-6, pp. 555-565, 2017.