A better understanding of yawed wind turbine wake characteristics could facilitate the use of a yaw-control strategy in wind farms. In this research， large-eddy simulations of the yawed wind turbine wakes were carried out. First， a simulation method based on the pseudo-spectral-based large-eddy simulation， as well as the recently developed filtered actuator disk model， was established. The feasibility and accuracy of the method were validated by the EPFL wind tunnel measurements of the yawed wind turbine wakes. Then， the turbine wakes under different yaw angles were simulated. It was found that the filtered actuator disk model could predict the velocity deficit， turbulence intensity， and wake center deflection in the far-wake region with good accuracy. Different from the non-yaw case， a “curling wake” was observed in the simulated yaw cases， resulting in an asymmetric distribution of the velocity deficit and turbulence intensity in the vertical plane. Finally， the wake flows of two wind turbines were simulated， and the yaw angles of the upstream turbine on the power performance was analyzed. The results suggest that the wind turbine spacing should not be too short. On one hand， the power of the downstream wind turbines decreases due to the wake interference induced by the upstream wind turbine. On the other hand， in the case of shorter turbine spacing， the wake center deflection of the upstream wind turbines is smaller at the location of the downstream wind turbine， and therefore， the total power increase becomes reduced. The present analysis is of guiding significance for the use of yaw-control technology in the wind farms.