Aerodynamic wake effects are a major source of energy loss and structural fatigue in wind farms. The deployment of kite systems above the wind farm offers a novel approach to enhance wake recovery by entraining high-momentum flow. This thesis introduces the Kite-Turbine Wake Interaction Simulation Tool (K-TWIST), a mid-fidelity tool that combines a lifting-line free wake vortex method with a viscous splitting technique. The solver captures unsteady aerodynamic interaction of the coupled kite-turbine system, while maintaining computational efficiency through parallel processing. Verification and validation confirm its ability to reproduce key flow phenomena, such as vortex roll-up, downwash and wake contraction. A case study on a 2 MW turbine demonstrates that kite deployment enhances vertical mixing and accelerates wake recovery. These results highlight the potential of kites to actively re-energize turbine wakes and provide a foundation for future optimization studies.