Review of the Co-flow Jet Flow Control Method

Abstract

The co-flow jet(CFJ)is a new concept flow control method based on blowing and suction technology.Since it was proposed,it has gradually attracted extensive attention.This paper reviews the basic principles,concepts,research methods and progress of CFJ.The development of the CFJ concept is retrospected.The basic principle,wind tunnel experiment and numerical simulation are introduced.The application research on airfoils/wings,control surfaces,rotating blades and conceptual aircraft design are presented.Finally,five problems in the research of the CFJare proposed,including the air source of CFJ,3D and dynamic CFJresearch,torque problems caused by CFJ control,aerodynamic/structural integration design and installation of CFJ,and power consumption of CFJ,which provide reference for further CFJresearch.

Keywords

• co-flow jet(cfj)
• flow control
• lift enhancement
• drag reduction
• super-lift