The investigation of thermo-flow over a rotationally oscillating confined circular cylinder with a splitter plate

In this study the laminar incompressible flow and the heat transfer from a rotationally oscillating circular cylinder with an attached splitter plate is investigated. Dynamic grid is used employing improved linear and torsional spring analogy which is coupled with the solver by the Arbitrary Lagrangian Eulerian (ALE) formulation for modeling the oscillation of cylinder by the aid of ANSYS FLUENT. The convection terms are discretized by QUICK, also diffusion terms have been discretized by second-order upwind scheme. For coupling the pressure and velocity fields, the PISO algorithm was employed. After verification of numerical solution with previous investigations, parametric studies were performed by changing oscillation frequency, splitter plate length and Reynolds number. It was observed that simultaneous usage of oscillation and splitter plate can have both positive and negative effects on drag reduction and heat transfer increment. Finally F=2 and L=0.5 were chose as the best combination.