论文标题
对瑞利毛细管喷气机的修订版
A revision on Rayleigh capillary jet breakup
论文作者
论文摘要
牛顿牛顿粘粘液液的平均瑞利毛细管破裂长度,均匀速度$ \ hat {u} $(可忽略不计的外力),必须通过选择不依赖时间依赖时间的幅度和波长的正常模式来确定。正组和负组速度IMS都存在于参数域(Weber和Ohnesorge数字)的充足范围内,这解释了(i)(i)环境条件(长期共振)的平均分解长度独立性,以及(ii)与主体速率质量速率的空间生长速率相对的比例。自Grace(1965年,博士学位论文)以来已发表的实验结果证实了我们的建议。
The average Rayleigh capillary breakup length of a cylindrical Newtonian viscous liquid jet moving with homogeneous velocity $\hat{U}$ (negligible external forces) must be determined by the selection of normal modes with time-independent amplitude and wavelength (invariant modes, IMs). Both positive and negative group velocity IMs exist in ample ranges of the parameter domain (Weber and Ohnesorge numbers), which explains (i) the average breakup length independence on ambient conditions (long-term resonance), and (ii) its proportionality to the inverse of the spatial growth rate of the dominant positive group velocity IM. Published experimental results since Grace (1965, PhD Thesis) confirm our proposal.