抄録
To develop efficient method of jet mixing, direct numerical simulations of combined jets are carried out. The Reynolds number is defined with a nozzle diameter, is Re=1500. The spatial discretization is performed with hybrid scheme in which sixth order compact scheme in streamwise direction and Fourier series in cross section are adopted. The distance between two jets is fixed at 6 times jet diameter, and the inclination angle of jet is changed from 45 to 70 deg. As a results, it reveals that the turbulence intensity is strengthened with decreasing inclination angle, and that the jet width increases via the excitation of jets. These findings suggest that the combination of jets flexibly meet the diversified needs of jet mixing control.
