We present a robust and efficient method for the two-way coupling between particle-based fluid simulations and infinitesimally thin solids represented by triangular meshes. Our approach is based on a hybrid method that combines a repulsion force approach with a continuous intersection handling to guarantee that no penetration occurs. Moreover, boundary conditions for the tangential component of...

We present phase-plane analysis of cosmologies containing a dilatonic scalar field coupling to a baryotropic fluid with an exponential potential. We show that for baryotropic fluid being radiation the properties of critical points are the same as the conventional scalar field in Ref[11]. For baryotropic fluid being ordinary matter there are coupling between dilatonic scalar field and ordinary m...

The Saffman-Taylor viscous fingering problem is investigated for the displacement of a non-Newtonian fluid by a Newtonian one in a radial Hele-Shaw cell. We execute a mode-coupling approach to the problem and examine the morphology of the fluid-fluid interface in the weak shear limit. A differential equation describing the early nonlinear evolution of the interface modes is derived in detail. O...

The cochlea plays a crucial role inmammal hearing.The basic function of the cochlea is tomap sounds of different frequencies onto corresponding characteristic positions on the basilar membrane (BM). Sounds enter the fluid-filled cochlea and cause deflection of the BM due to pressure differences between the cochlear fluid chambers. These deflections travel along the cochlea, increasing in amplit...

We present an extension of a non-iterative, partitioned method previously designed and used to model the interaction between incompressible, viscous fluid thick elastic structure. The original is based on Robin boundary conditions it features easy implementation unconditional stability. However, sub-optimally accurate in time, yielding only O(Δt12) rate convergence. In this work, we propose imp...

The intricate motions and complex vortical structures generated by the interaction between fluids solids are visually fascinating. However, reproducing such a two-way coupling thin objects turbulent numerically is notoriously challenging computationally costly: existing approaches as cut-cell or immersed-boundary methods have difficulty achieving physical accuracy, even visual plausibility, of ...

An implementation of a coupled Navier-Stokes/Darcy model based on different Dune discretization modules is presented. The Darcy model is taken from DuMux, the Navier-Stokes model is implemented on top of Dune-PDELab, and the coupling is done with help of Dune-MultiDomain together with some project-specific auxiliary code. The Navier-Stokes model features one fluid phase, the Darcy model two flu...

We experimentally and theoretically investigate the band-gap and transmission properties of phononic crystal (PC) beams immersed in water. Spectral element method (SEM) is developed for theoretical analysis in which the hydrodynamic loading is taken into consideration. Influence of the hydrodynamic loading on band-gap and transmission properties of the PC beams are studied. To directly detect t...