%0 Journal Article %A Arash Mir Abdolah Lavasani and Meghdad Ebrahimi Sabet %D 2015 %J International Journal of Aerospace and Mechanical Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 108, 2015 %T Numerical Simulation of Turbulent Flow around Two Cam Shaped Cylinders in Tandem Arrangement %U https://publications.waset.org/pdf/10003024 %V 108 %X In this paper, the 2-D unsteady viscous flow around two cam shaped cylinders in tandem arrangement is numerically simulated in order to study the characteristics of the flow in turbulent regimes. The investigation covers the effects of high subcritical and supercritical Reynolds numbers and L/D ratio on total drag coefficient. The equivalent diameter of cylinders is 27.6 mm The space between center to center of two cam shaped cylinders is define as longitudinal pitch ratio and it varies in range of 1.5< L/D<6. Reynolds number base on equivalent circular cylinder varies in range of 27×103< Re <166×103 Results show that drag coefficient of both cylinders depends on pitch ratio. However, drag coefficient of downstream cylinder is more dependent on the pitch ratio. %P 2076 - 2080