Non-Newtonian Fluids in Environmental Hydraulics: Modelling and Applications

Dear Colleagues,

Non-Newtonian fluids, whose flow properties are not described by a single constant value of viscosity, are ubiquitous in nature. Such fluids are most commonly characterized by a non-linear relationship between stress and strain, yield stress, or time-dependent viscosity. Rheological complexity entails, in turn, solving non-linear mathematical problems that are far more challenging than those involving Newtonian fluids. Similar challenges are faced at the experimental level, where physico-chemical aspects and rheometry become paramount. For environmental flows, these issues are often coupled with the inherent parametric uncertainty typical of natural settings.

This Special Issue is open to papers advancing knowledge of non-Newtonian flows in natural fluid systems, both above and below ground, or showing innovative applications. Analytical, numerical, and experimental approaches are equally welcome. Potential topics include but are not limited to open-channel flows (including regime transitions, propagation phenomena, and stability), debris and mud flows, gravity currents both in the viscous and inertial regime, and turbulence modeling. As to the subsurface environment, this call welcomes analyses (at the Darcy scale) and case studies dealing with both porous and fractured media and pertaining to fracking, EOR applications, the migration of pollutants, wastes and drilling fluids, and the flow of complex fluids acting as carriers for remediation agents, to name a few.

Prof. Dr. Vittorio Di Federico
Prof. Dr. Valentina Ciriello
Prof. Dr. Sandro Longo
Guest Editors

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