A valve for regulating the flow of a fluid includes a housing defining a fluid inlet and a fluid outlet. A flow control element is disposed within the housing and is configured to dissipate energy in a fluid flowing therethrough from the fluid inlet to the fluid outlet. A valve seat is positioned within the housing and includes a plurality of vortex generators which induce vortices in the fluid as the fluid flows through the valve seat. A plug is disposed within the housing and is moveable relative thereto between closed and open positions. The plug moves away from the valve seat as the plug moves from the closed position toward the open position such that fluid flow through the flow control element and the valve seat increases as the plug is moved from the closed position toward the open position.