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Mud and debris flows
Supervisor: Andrew Hogg
Theme: Fluid Dynamics
When a fluid is highly laden with particles or contains a significant fraction of mud, it may exhibit dynamical features that differ strongly from situations where the particulate phase is dilute. Most notably the fluid may exhibit a yield strength that must be overcome for motion to occur. This poses a significant control on the flows: in particular they may arrest or form channelised and braided streams. Recent experiments and field observations have highlighted a number of these features and Ph.D. projects in this area would develop quantitative, mathematical models that yield rational, physical explanation for the observed phenomena.