The interactions between incompressible fluid flows and immersed structures are nonlinearmulti-physics phenomena that have applications to a wide range of scientific and engineering disciplines.In this article,we revi...The interactions between incompressible fluid flows and immersed structures are nonlinearmulti-physics phenomena that have applications to a wide range of scientific and engineering disciplines.In this article,we review representative numericalmethods based on conforming and non-conformingmeshes that are currently available for computing fluid-structure interaction problems,with an emphasis on some of the recent developments in the field.A goal is to categorize the selected methods and assess their accuracy and efficiency.We discuss challenges faced by researchers in this field,and we emphasize the importance of interdisciplinary effort for advancing the study in fluid-structure interactions.展开更多
We perform numerical simulations of the sedimentation of rigid fibers suspended in a viscous incompressible fluid at nonzero Reynolds numbers.The fiber sedimentation system is modeled as a two-dimensional immersed bou...We perform numerical simulations of the sedimentation of rigid fibers suspended in a viscous incompressible fluid at nonzero Reynolds numbers.The fiber sedimentation system is modeled as a two-dimensional immersed boundary problem,which naturally accommodates the fluid-particle interactions and which allows the simulation of a large number of suspending fibers.We study the dynamics of sedimenting fibers under a variety of conditions,including differing fiber densities,Reynolds numbers,domain boundary conditions,etc.Simulation results are compared to experimental measurements and numerical results obtained in previous studies.展开更多
基金support from the National Science Foundation under Grant Numbers 0728610 and 0715021,respectively.
文摘The interactions between incompressible fluid flows and immersed structures are nonlinearmulti-physics phenomena that have applications to a wide range of scientific and engineering disciplines.In this article,we review representative numericalmethods based on conforming and non-conformingmeshes that are currently available for computing fluid-structure interaction problems,with an emphasis on some of the recent developments in the field.A goal is to categorize the selected methods and assess their accuracy and efficiency.We discuss challenges faced by researchers in this field,and we emphasize the importance of interdisciplinary effort for advancing the study in fluid-structure interactions.
文摘We perform numerical simulations of the sedimentation of rigid fibers suspended in a viscous incompressible fluid at nonzero Reynolds numbers.The fiber sedimentation system is modeled as a two-dimensional immersed boundary problem,which naturally accommodates the fluid-particle interactions and which allows the simulation of a large number of suspending fibers.We study the dynamics of sedimenting fibers under a variety of conditions,including differing fiber densities,Reynolds numbers,domain boundary conditions,etc.Simulation results are compared to experimental measurements and numerical results obtained in previous studies.
