Ph.D., 2000, Massachusetts Institute of Technology, Civil and Environmental Engineering
Ocean waves, environmental fluid mechanics and coastal dynamics
Dr. Yu’s primary interests are in theoretical fluid dynamics and applied mechanics, with emphases on wave mechanics, hydrodynamic instabilities, coastal hydrodynamics and seabed mechanics. Current research focuses include:
- waves over arbitrary periodic topographies and Bragg resonances;
- terrain-following boundary layer flows and ripple induced flows;
- wave-current-sediment morphology interactions in nearshore oceans;
- Kelvin-Helmholtz instability in vegetated wetlands;
- wave-structure interactions and ocean renewable energy;
- Lagrangian ocean data assimilation;
- rectification of oscillating motions, peristaltic transport and micro-pumping.
Interests in Applied Mathematics include: conformal mapping, Floquet theory, multi-scale perturbation techniques and homogenization.
Recent publications (*out-growth of supervised graduate research)
Yu, J. 2014 Fluid ratcheting by oscillating channel walls with sawteeth. In review with J. Fluid Mech.
Yu, J. & Chen, S. 2014 *A note on the hydrodynamic instability mechanism for rip currents. In review with J. Fluid Mech.
Yu, J. & Howard, L. N. 2012 Exact Floquet theory for waves over arbitrary periodic topographies. J. Fluid Mech., 712, 451 – 470. Doi:10.1017/jfm.2012.432.
Yu, J. & Zheng, G. 2012 *Exact solutions for wave propagation over a patch of large bottom corrugations. J. Fluid Mech., 713, 362 – 375. Doi:10.1017/jfm.2012.460.
Yu, J. 2010 Effects of finite water depth on natural frequencies of suspended water tanks. Studies in Applied Mathematics, 125, 373 – 391.
Yu, J. & Howard, L. N. 2010 On higher order Bragg resonances of water waves by bottom corrugations. J. Fluid Mech., 659, 484 – 504.