Numerical investigation of the interaction of the turbulent dual-jet and acoustic propagation
Li Yi-Ming, Li Bao-Kuan †, Qi Feng-Sheng, Wang Xi-Chun
       

(color online) Instantaneous contours of vorticity magnitude of dual-jet: levels based on ωr s/U j with lighter contours representing larger values: (a) l/dd = 1.5; (b) l/dd = 4.