Modeling of multiphase flows with interfaces

Flows including more than one-phase are ubiquitous in nature, e.g., rain drops, gas bubbles, dust carried by wind, surface of rivers and/or oceans, see Fig.1. In particular, of interests are flows (often turbulent) with deformable interfaces between gas and/or liquid phases considered as immiscible fluids. The mathematical description of multi-phase flows becomes more complex than in one-phase …
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Hydrodynamic stability in undulated channels

Nektar++ has been used to study various forms of hydrodynamic instabilities arising is a flow through a channel with corrugated walls. Stability analysis has been performed using direct numerical simulation and tracking growth, or attenuation of the unstable modes. We ware able to show that, in the case of the large scale wall undulations applied …
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