【摘要】 本文针对粘性气体中的粘性不可压缩液体射流的分裂与雾化过程边界条件,进行了扰动分析,并对其进行线性化及无量纲化,得到了射流扰动控制方程无量纲线化边界条件。最后对射流分裂与雾化过程的不稳定性做了数值分析,其结果与实际观测到的射流边界面变化规律一致。更多还原

【Abstract】 Investigated in this paper are boundary conditions for the breakup and atomization mechanism analysis of an incompressible viscous liquid injected into a viscous gas. Based on perturbation analysis, linearized and dimensionless boundary conditions are obtained for the disturbance governing equation. Numerical experiment of the instability for the breakup and atomization process of the liquid jet is conducted, and the results show the agreement with the experimental observation on the jet surface deformation and evolution.更多还原