Results
To aid the analysis of the results, create a series of line integrals of the heat flux across boundaries, in an Evaluation Group. Let the line integrals run across the middle section of the pipe (on the r-axis), and the contact surfaces for heat source and heat sink.
Energy Balance
1
In the Results toolbar, click  Evaluation Group.
2
In the Settings window for Evaluation Group, type Energy Balance in the Label text field.
3
Locate the Data section. From the Dataset list, choose Study 2 - Saturated Wick/Parametric Solutions 2 {dset5}.
4
Locate the Transformation section. Select the Transpose checkbox.
Heat Sink
1
Right-click Energy Balance and choose Integration > Line Integration.
2
In the Label text field, type Heat Sink.
3
Locate the Selection section. From the Selection list, choose Heat Sink.
4
Click Replace Expression in the upper-right corner of the Expressions section. From the menu, choose Component 1 (comp1) > Heat Transfer in Porous Media > Boundary fluxes > ht.ndflux - Normal conductive heat flux - W/m².
5
Locate the Expressions section. In the table, enter the following settings:
Expression
Unit
Description
ht.ndflux
W
sink: ndflux
Heat Source
1
Right-click Heat Sink and choose Duplicate.
2
In the Settings window for Line Integration, type Heat Source in the Label text field.
3
Locate the Selection section. From the Selection list, choose Heat Source.
4
Locate the Expressions section. In the table, enter the following settings:
Expression
Unit
Description
ht.ndflux
W
source: ndflux
Casing
1
Right-click Heat Source and choose Duplicate.
2
In the Settings window for Line Integration, type Casing in the Label text field.
3
Locate the Selection section. From the Selection list, choose Cross Section of Casing.
4
Locate the Expressions section. In the table, enter the following settings:
Expression
Unit
Description
ht.ndflux
W
casing: ndflux
Wick
1
Right-click Casing and choose Duplicate.
2
In the Settings window for Line Integration, type Wick in the Label text field.
3
Locate the Selection section. From the Selection list, choose Cross Section of Wick.
4
Locate the Expressions section. In the table, enter the following settings:
Expression
Unit
Description
ht.ndflux
W
wick: ndflux
Cavity
1
Right-click Wick and choose Duplicate.
2
In the Settings window for Line Integration, type Cavity in the Label text field.
3
Locate the Selection section. From the Selection list, choose Cross Section of Cavity.
4
Locate the Expressions section. In the table, enter the following settings:
Expression
Unit
Description
ht.ndflux
W
cavity: ndflux
w*spf.rho*HeatOfVaporization_water21(T)
W
cavity: latent heat
Latent heat flux from phase change
To investigate how the phase change along the wick transfers thermal energy, create a line graph plotting this heat flux along the cavity–wick boundary.
1
In the Results toolbar, click  1D Plot Group.
2
In the Settings window for 1D Plot Group, type Latent heat flux from phase change in the Label text field.
Line Graph 1
1
Right-click Latent heat flux from phase change and choose Line Graph.
2
In the Settings window for Line Graph, locate the Data section.
3
From the Dataset list, choose Study 2 - Saturated Wick/Parametric Solutions 2 {dset5}.
4
Locate the Selection section. From the Selection list, choose Inner Wick Boundary.
5
Locate the y-Axis Data section. In the Expression text field, type (u*spf.nr + w*spf.nz)*spf.rho*HeatOfVaporization_water21(T).
6
Locate the y-Axis Data section. Select the Description checkbox.
7
In the associated text field, type (<B>u</B>\cdot<B>n</B>)\rho\DELTA H<sub>vap</sub>.
8
Click to expand the Title section. From the Title type list, choose Manual.
9
In the Title text area, type Latent heat flux from phase change.
10
Locate the x-Axis Data section. From the Parameter list, choose Expression.
11
In the Expression text field, type z.