The thermal resistance of the boundary layer is a crucial problem to overcome in convection heat transfer mode. One promising solution is to suppress the boundary layer with a normal jet impingement. To investigate the viability of this solution, a three-dimensional numerical model of the transport phenomena of cooling a hot flat plate using a swirl air jet perpendicular to a crossflow of air passing over a flat plate was developed. The reference case is cooling the flat plate using only crossflow at the total mass flow rate of both streams. Meanwhile, to best represent the viability of this solution, the pumping power is taken into account in this study. The finite element method with the SST k-ω turbulence model was used for the numerical study. The current study combines a swirl air jet and crossflow of air to improve cooling of a hot flat plate, resulting in best possible thermal and hydraulic performance. Parametric study was performed by varying the Reynolds number of the jet, Re_j (2500−10000), for different jet to plate spacings, Z/D(1−2), for swirl number, SW (0.3−0.9), and different blockage ratios, BR (0.4−0.6). The thermal performance was assessed by the average coefficient of convection, h_j. Results show that for all the studied cases, there is a clear enhancement of the heat transfer rates when employing combination of swirl jet with crossflow over flat plate compared to the case of crossflow without jet.