Results
Minimum Radius
1
In the Model Builder window, under Results click 1D Plot Group 5.
2
In the Settings window for 1D Plot Group, type Minimum Radius in the Label text field.
3
Click to expand the Title section. Locate the Plot Settings section. Select the x-axis label checkbox.
4
Select the y-axis label checkbox.
5
In the x-axis label text field, type t.
6
In the Minimum Radius toolbar, click Plot .
The plot shows the minimum filament radius as a function of time. After a rapid formation of the beads-on-string structure, the figure shows the slow thinning of the threads. The rate of thinning is determined by the balance of surface tension and the elastic forces. Under the assumption of a spatially constant and slender profile, an asymptotic solution to the problem can be derived. Plot the asymptotic solution using the following steps.
Grid 1D 1
1
In the Results toolbar, click More Datasets  and choose Grid > Grid 1D.
2
In the Settings window for Grid 1D, locate the Parameter Bounds section.
3
In the Minimum text field, type 50; in the Maximum text field, type 300.
Minimum Radius
In the Model Builder window, click Minimum Radius.
Function 1
1
In the Minimum Radius toolbar, click More Plots  and choose Function.
2
In the Settings window for Function, locate the y-Axis Data section.
3
In the Expression text field, enter the asymptotic expression -1/(3*De*log(10))*x-0.3.
4
Locate the x-Axis Data section. In the Expression text field, type x.
5
In the Lower bound text field, type 150.
6
In the Upper bound text field, type 250.
7
Locate the Data section. From the Dataset list, choose Grid 1D 1.
8
Click to expand the Coloring and Style section. Find the Line style subsection. From the Line list, choose Dashed.
9
In the Width text field, type 2.
10
From the Color list, choose Black.
11
Click to expand the Legends section. Select the Show legends checkbox.
12
From the Legends list, choose Manual.
13
Type slope=-1/(3*De*log(10))in the table.
14
In the Minimum Radius toolbar, click Plot .
The figure shows that the evolution of the minimum radius agrees well with the asymptotic prediction for large times.