Flow modifying element for wind turbine blade

A flow modifying element for a wind turbine blade, wherein the wind turbine blade (10) comprises a blade body (20) having a leading edge (16), a suction surface (18), a pressure surface (19), and a trailing edge (17), wherein the blade body (20) has a chord length c, wherein the leading edge (16) corresponds to a position in chord direction of 0% c and the trailing edge (17) corresponds to a position in chord direction of 100% c,

• wherein the flow modifying element (30) is configured to be arranged on the pressure surface (19) of the blade body (20) in a range in chord direction between 40% c and 100% c,
• and wherein the flow modifying element (30) has a bulge (33) that bulges outwardly from the pressure surface (19) of the blade body (20),
• wherein the flow modifying element (30) is shaped and configured to be arranged to increase the lift coefficient of an aerodynamic profile of the blade body (20) by increasing a pressure of air streaming past the bulge (33) on a leading portion of the bulge (33), and
• wherein the flow modifying element (30) is an active element and is configured to be adaptable in at least one of:
• position in chord direction, thickness (the) of the bulge (33), and shape of the bulge (33).