摘要
There has been tremendous progress in the development and application of advanced computational techniques for simulating the motion of an incompressible fluid driven by flexible immersed structures,in large part owing to the multitude of applications in physiology and biology.Active biological tissue is typically constructed of fibers that are surrounded by fluid;the fibers not only hold the tissue together but also transmit forces that ultimately result in fluid motion.In other cases,the fluid may flow through flexible conduits such as blood vessels or airways that both react to and affect the fluid dynamics.Additional examples arise in the context of external fluid flows in biological and engineering applications,such as dynamics of insect wings,flagellated or ciliated organisms,suspensions of blood cells and other synthetic particles,parachute dynamics,and so on.