Synchronization of fluidic actuators

A vehicle, comprising:

• a rotatable door;
• and
• an active separation control system comprising:
• a plurality of fluidic oscillatory actuators, each fluidic oscillatory actuator of said plurality of fluidic oscillatory actuators having an ejector member,
• an oscillator member, and
• a joining channel between said oscillator member and said ejector member,
• wherein said oscillator member, said joining channel and at least one of said plurality of fluidic oscillatory actuators are mounted on at least one flexible member;
• wherein each fluidic oscillatory actuator is mounted on said rotatable door of the vehicle such that said flexible member assumes a different shape when said door is closed than when said door is open,
• wherein said joining channel is also flexible to assume a shape of said flexible member, wherein the active separation control system comprises a synchronization conduit, and wherein said synchronization conduit is mounted on said flexible member to connect at least two of said actuators such as to effect synchronization between oscillations in said at least two actuators.

A method of controlling air flow at a surface of a vehicle, the method comprising:

• mounting an active separation control system on a rotatable door of the vehicle, said active separation control system comprising:
• a fluidic oscillatory actuator having an ejector member,
• an oscillator member, and
• a joining channel between said oscillator member and said ejector member,
• said fluidic oscillatory actuator, said oscillator member and said joining channel being mounted on at least one flexible member, such that said flexible member assumes a different shape when said door is closed than when said door is open, wherein said joining channel is also flexible to assume a shape of said flexible member.