Sally Williams

BE (Hons)
Postgraduate Research Student



School of Civil Engineering, Room 101
Phone: +61 2 9351 2145
Fax: +61 2 9351 3343
Email: S.Williams@civil.usyd.edu.au

Research project - Numerical modelling of ocean wave attenuation

Supervisor: Prof John Small
Associate Supervisor: Dr Abbas El-Zein

Density variations are known to occur within the ocean due to changes in temperature, salinity and suspended particulate concentration. Such deviations from homogeneity can be manifested as continuous variations or as step-like changes.

In this project we will investigate the propagation characteristics of interfacial gravity waves in the stratified ocean through numerical solution of the incompressible Navier-Stokes equations.

Wave modelling

Recent publications

• Williams, S,J. and Jeng, D.-S., "The effects of a porous elastic seabed on interfacial wave propagation", Ocean Engineering, 34(13), pp 1818-1831, 2007.
• Williams, S,J. and Jeng, D.-S., "Viscous attenuation of progressive interfacial waves over a porous seabed", Journal of Coastal Research, SI50, pp338-342, 2007.
• Lu, J.F., Jeng, D.-S., Williams, S.J., "A 2.5-D dynamic model for a saturated porous medium: Part I. Green's Function", International Journal of Solids and Structures 45(2), pp 359-377, 2008.
• Lu, J.F., Jeng, D.-S., Williams, S.J., "A 2.5-D dynamic model for a saturated porous medium: Part II. Boundary Element Method", International Journal of Solids and Structures 45(2), pp 378-391, 2008.
• Jeng, D.-S. and Williams, S,J., "Comments on 'Interaction between internal waves and a permeable seabed' by C. Y. Chen and J. R. C. Hsu”. Ocean Engineering, 33(3-4), pp 535-536, 2006.

Learning and Teaching

• CIVL4614 Hydrology & Wind Engineering (Course co-ordinator)
• CIVL3613 Coastal Engineering
• CIVL3612 Fluids and Environmental Engineering
• CIVL3010 Engineering and Society
• CIVL2611 Fluid Mechanics