Numerical Simulation of Flow around Two Rotation Cylinders in Tandem Configuration

It is a common problem in nature and the engineering practices that the flowing phenomenon of the two rotating tandem cylinders. Based on finite-volume method in unstructured grid, the flow around two rotation cylinders in tandem configuration by fluent software and the aerodynamic performance of different spaces and different rotation modes were investigated. Concurrently, we reached a relevant aerodynamic performance and variations of coefficient of lift and drag of cylinders. the results showed that it is a better way that the upstream and downstream cylinder are clockwise rotating and the spacs is 3.0,whose lift-drag ratio is higher,which have practical significance to the engineering problems in aviation, navigation and related fields.