Numerical Investigation of Impinging Two-Dimensional Jet on an Inclined Flat Plate

The flow and thermal fields in a turbulent jet, impinging on a flat plate at an angle of incidence, has been studied numerically. The plate has a constant heat flux that transfers to the jet fluid and causes a temperature gradient in fluid. Computations are carried out with k-epsilon and v'(2)-f turbulence models. The flow is assumed to be two dimensional, steady incompressible and turbulent. The finite volume method is used to solve the two dimensional conservation equations of mass, momentum, energy and v'(2)-f turbulence models. The finite volume method is formulated to suit the general grid system. The flow characteristics were studied by changing plate inclination as 0 degrees <= theta <= 45 degrees, the distance between the nozzle exit and plate within 2 <= H/b <= 1 2, and the Reynolds number in the range 2500 <= Re <= 12000. The results show that the location of the maximum heat transfer was affected by the angle of inclination. The location of the maximum heat transfer shifts towards the up hill side of the plate by increasing the inclination angle. The value of the maximum Nusselt number increases with increasing nozzle-to-plate spacing. The pressure coefficient increases as the distance between the nozzle and pate decreases.