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[The lateral migration of a single spherical particle in tube Poiseuille flow is simulated by ALE scheme, along with the study of the movement of a circular particle in plane Poiseuille flow with consistent dimensionless parameters. These particles are rigid and neutrally buoyant. A lift law L =...
[The force-coupling method (FCM) provides an efficient tool for computing particle motion and the flow in the surrounding fluid both in confined microflow systems and in larger scale suspensions. Here we present results for the interaction of individual particles in a shear flow showing that FCM...
[We discuss two sets of non-trivial effects affecting the motion of high-Reynolds number gas bubbles rising in still liquid which have been significantly clarified thanks to direct numerical simulations making use of a suitable boundary-fitted technique.We first summarize some features of the...
[The status of direct numerical simulations of bubbly flows is reviewd and a few recent results are presented. The development of numerical methods based on the one-field formulation has made it possible to follow the evolution of a large number of bubbles for a sufficiently long time so that...
[A finite-volume/front-tracking (FV/FT) method is developed for computations of multiphase flows in complex geomtries. The front-tracking methodology is combined with a dual time-stepping based FV method. The interface between phases is represented by connected Lagrangian marker points. An...
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