对于射流的动力学边界条件,学术界一直没有全面、系统地论述过。线性和非线性动力学边界条件之间存在相互对应的关联关系,即线性动力学边界条件应该通过对非线性动力学边界条件的线性化得到,而现有文献中并未明确。本文从动力学边界条件的普适性原始表达式入手,对平面液膜、圆射流和环状液膜气液交界面三维扰动瑞利和瑞利-泰勒表面波的线性动力学边界条件和一维扰动多级瑞利表面波的非线性动力学边界条件进行详细的推导。
Dynamic boundary conditions of the liquid jets are not comprehensive and systematic studied by researchers. It is correlated between linear and nonlinear dynamic boundary conditions. Linear dynamic boundary conditions can be obtained by linearizing nonlinear dynamic boundary conditions, which is not cleared in the references. Started with the general and universal initial expression of the dynamic boundary condition, the linear dynamic boundary conditions of three dimensional R and R-T surface waves between liquid and gas interfaces and nonlinear dynamic boundary conditions of multi-order, one dimensional R surface waves for plane liquid film, liquid jet, and annular liquid film, were derived in detail.
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