Direct Numerical Simulation of Mixing Performance in Turbulent Channel Flow with an Elastic Cylinder

摘要

In the present paper in order to investigate the possibility offlow control using an elastic cylinder, we conduct a simulationof a finite-length elastic cylinder installed in a turbulent channelflow. For an elastic cylinder, the rigorous equation of motionfor elastic continuum is solved with a finite volume method;the effect of existence of cylinder in the flow computation istaken into account using the immersed boundary method. Fromtime averaged quantities, we demonstrate that the elastic cylindermodulates wake structures, heat transfer characteristics andmixing performance.