Position: Senior Lecturer
Qualification(s): PhD (Maths), University of Cape Town
Subject Expertise: Undergraduate Engineering Mathematics
Research Interests: 

Dr Duba’s research focuses on fluids in which rotation is a main factor, like oceans and atmosphere, both of which affect weather and hence climate change. Weather and climate change are affected by either wind-wave interactions or by mixing processes, like convection. Her research focuses on these two aspects of large scale fluids. In wave dynamics, the main focus is on Rossby waves generated by the latitudinal variation of the Coriolis force, which tends to direct motion to the right in the Southern Hemisphere and to the left in the Northern Hemisphere. Rossby waves are responsible for the El Nino and the La Nina, and are very significant in the study of weather and climate change. In the area of mixing processes, the focus is on convection due to pressure gradients and buoyancy (Benard Convection), or between two opposing pressure gradients (double-diffusive convection), studying the bifurcation patterns using nonlinear stability analysis.