Viewing Monitor Point Data and Exporting to Excel

 

Once monitor points have been added to the project, you can view the tabulated data in the Monitor Point Data window.

 

To open the Monitor Point Data Window:

Select Monitor Point Data from the Project menu, or select the  icon on the toolbar, the following window will appear with a warning window saying "Some data for the monitor points is not up to date," click OK, and then click the Update button () in the upper right corner of the Monitor Point Data window.

 

Updating Monitor Point Data

Tutorial 3 - Figure 9 - Monitor Point Data window being updated after clicking the Update button.

 

We see in that the columns are made up of the monitor points that have been added to the project, and the rows correspond to the simulations that have been completed. Initially the Variable is set to Streamwise Velocity, m/s. Figure 10 shows Monitor Point 01 and Monitor Point Grid 01 both have low values for the wind speed and some of the other grid points even have negative values. This can be visually checked by looking at the contours and vectors defined in Tutorial 1, as shown in Figure 11. Here the blue vectors indicate flow in the opposite direction of the wind, resulting in negative values for the monitor point streamwise velocity values.

 

Streamwise Velocity Data

Tutorial 3 - Figure 10 - Zoomed view of Monitor Point Data Window displaying the streamwise velocity values for the monitor points.

 

 Streamwise Velocity contour and vector field verifying some of the monitor point data obtained.

Tutorial 3 - Figure 11 - Showing Streamwise Velocity contour and vector field verifying some of the monitor point data obtained.

 

Change the Variable dropdown menu at the upper left side of the monitor point data window to METHANE Volume Fraction, %LFL. Here it can be seen that Monitor Point 02 has the highest value. This is expected as this point is located closest to the 50% LFL isosurface defined in Tutorial 2.

 

 

methane %LFL Data

Tutorial 3 - Figure 12 - Zoomed view of Monitor Point Data for the %LFL.

 

You can change the number of monitor points shown in the window by de-selecting the All checkbox and using the Points: dropdown menu to select the desired points.

 

Let's compare a few specific monitors by selecting 'Monitor Point 02', 'Monitor Point Grid 21', 'Monitor Point Grid 22', 'Monitor Point Grid 23', 'Monitor Point Grid 24' and 'Monitor Point Grid 25' from the dropdown menu, as shown in Figure 13 below. Six monitor points in total.

 

Selecting Individual Monitors to appear in Monitor Data Window

Tutorial 3 - Figure 13 - Process for selection of individual monitor points to view their data, rather than all monitor points in the project

 

 

Tutorial 3 - Figure 14 - Monitor Point Data window after only six points have been selected for viewing

 

 

Here it is easier to compare the %LFL values of these specific points, as in Figure 14 above.

 

Since there is no limitation to the number of monitors that can be added to a project, this feature will become more useful as more monitor points are added. All the data in these tables can be exported to excel either with a single variable or with all the variables. Before exporting this data, be sure to turn back on all the monitor points by selecting the All checkbox () otherwise only the six displayed monitor points above will be exported.

 

Entering Info For Exported Excel Reports

In the first tab of the excel file there will be a cover sheet listing the date, time of creation, and project information. To edit the project information, return to the in:Flux main window and select the Project Information option from the Project menu, alternatively you can click the icon on the toolbar. The following window will appear to allow for information to be entered about the project. Text is automatically saved so there is no need for a save button or to press enter on your keyboard. Click Close when finished.

 

Project Information

Tutorial 3 - Figure 15 - Project Information window example text

 

Return to the Monitor Point Data window and click the Export button () and select Selected Variable from the dropdown menu and choose a title, such as "Tutorial 3 Monitor Point Data for Methane LFL" and set the save location for the excel file.

 

Open the excel file and see that the project information you entered is present on the cover page. If All Variables was selected when exporting, then every variable that is saved by in:Flux would be listed as a separate tab in the excel file. For simplicity, we only exported the volume fraction of Methane in terms of LFL.

 

 Screenshot of exported excel file from the monitor point data window

Tutorial 3 - Figure 16 - Screenshot of exported excel file from the monitor point data window

 

Notice in the 'METHANE Volume Fraction' tab, shown in Figure 17, that the properties of the gas leak are listed first and then the associated data for each monitor point. The exported excel data will have more significant digits than the Monitor Point Data window.

 

Excel Report of Monitor Point Data

Tutorial 3 - Figure 17 - Monitor point data exported to excel, showing the METHANE Volume Fraction in %LFL for each point.

 

The next section will go over the addition of a monitor line to the project.