Ohnesorge number function

The first term is essentially the reciprocal of the Weber number and the second term is a function of the Ohnesorge number. Equation 13 may be invaHd for airblast atomizers operating at high pressures, >1 MPa (>10 atm), or with high viscosity Hquids. 

In the section on Twin-Huid Nozzles, it was shown that Lund et al. [36] derived 24.4.i for effervescent nozzles. This same equation is valid for swirl nozzles. The only difference lies in the method by which the ligament diameter is determined. A formula was derived by Couto et al. [66] 24.7.ii, and can be used in conjunction with 24.4.i. The spray angle is considered in this formula as well. Equation 24.4.i is plotted in Fig. 24.42 as a function of the Ohnesorge number at different ligament diameters. 

Fig. 26.2 The dispersion relations of an inviscid laminar jet in a vacuum [1] and of viscous jets with different Ohnesorge numbers Oh = ii/ /adp for the jet diameter d [4] the non-dimensional growth rate a> = as a function of the non-dimensional wave number ka. The jet...

Figure 2.11 illustrates the extended spray regime as a function of the modified Ohnesorge number Oh and the Reynolds number. Spray formation is significantly... 

Fromm s dimensionless Z-number, which is the inverse of the Ohnesorge number (Oh), has been used to analyze the droplet formation and can be written as a function of both dimensionless Re and We numbers ... 

Fig. 9.2 Map of secondary atomization regimes as functions of Ohnesorge and Weber numbers, in which the areas representative of automotive gasoline and diesel sprays are identified...

---