Study on Effect Factors of Needle Shape Nozzle's Spray Characteristics

The effect factors of needle shape nozzle's spray characteristics have many to do with the choice of the nozzle structure and jet pressure.The study of above factors was made in this paper,based on the laboratory tests.Then,we analyzed the relation of the nozzel's spray characteristics and the jet pressure,jet diameter,the ratio of length and diameter,inlet angle and so on.The conclusion acquired in this paper about the needle-shape nozzle is shown no matter what theory or engineering application will have effect on it.