Research on Instability of Dimethyl Ether Jet under Normal and Superheated Conditions

Based on linear stability analysis, this paper derived a dispersion equation which relates the disturbance growth rate to its wave number. Moreover, the dimensionless form and solution procedure of the dispersion equation were obtained. In order to improve the understanding of atomization mechanism of dimethyl ether (DME) jet, the instability of DME jet under normal and superheated conditions were analyzed in detail, and some valuable conclusions were made.