A flow conditioning system includes a flow randomizing section for receiving an input fluid stream and for increasing the uniformity of the streamwise velocity components of the input fluid stream while randomizing the non-streamwise velocity components, so as to provide a randomized fluid stream; a flow expansion section for receiving the randomized fluid stream and damping the non-streamwise velocity components therein, so as to provide a damped fluid stream; and a flow straightening section for receiving the damped fluid stream and for dividing the damped fluid stream into multiple, parallel output substreams so as to provide a laminar flow profile in an output fluid stream.