Control of Mixture of Jet and Combustion by Several Mini Jets

Jets have wide application in industrial world, heating, cooling, convection of matter, chemical reaction and spraying etc. And various control methods of the jets are presented and used. The jets have large-scale vortex and the vortex play an important role to determine the characteristics of the flow fields. An active control of the jets is seen that is the method to control the cross-section and diffusion of the jets due to various actuators at the nozzle exit. Recently the method is tried that intelligent nozzle by means of micro actuator is applied to precious control of the jets. However environment applying the jets is cruel condition in various industrial cases, for example combustion, and a robust control is demanded. It is difficult to solute the demand by the micro actuator and the tuff control method is expected to answer the demand. In this investigation we present the control method to bear against the cruel condition. The method is that vorticity of the vortex in the jets is introduced by mini jets and enhance of diffusion partially and mixing is came true.