Guidelines of using PLM on the Cloud (experiment 4)

Good to know before you start:

-        This workflow will allow you to browse the results of a CFD model simulation. The model is called “Numeca_WP113”.

-        Folder names in this model reflect the applied parameters for the Stellba simulation, such as, runner angle and gate angle.

-        Simulations that failed (for example, those with considerable mass flow error) are reported in folders with names that reflect the failure (for example: “gate_35_mass_flow_error”).

-        Files that can be displayed by the visualisation tools provided by this workflow are in dedicated folders, for example: “H05k00_R05k0_G20k0_ptot150014_cfd”.

-        Some key performance indicators have been created for the Stellba use case, for example, “Efficiency”. Values have been assigned to these KPIs in folders where those make sense.

-        Approval values, such as “approved”, “rejected” and “on-hold” have been assigned to some of the folders in this PLM model.

This workflow is divided into three stages:

1)      Browsing of simulation results in the PLM client

2)      Visualisation of simulation results from the PLM client or from a separate stage in the workflow

3)      Approval and downloading of simulation results

The user moves from one stage to the next one by the “Done”-button in the display of the current stage.

1.  Browse simulation results

1.1.     Select model

The first display of the PLM workflow shows the contents of the “InitialRepository”.

Find a model name that is of interest to you.

Click the blue lines-icon to the right of the model that you want to browse.

A context menu appears; select “Open”.

1.2.     Check for erroneous simulations

Verify that all simulations ran without errors (mass flow error).

In the tab “Structure” in the left pane the name of the root folder appears with a +-sign to its left.

Click on the +-sign or on the folder name to see sub-folders.

Repeat this action for all folders of your interest.

Folder names containing the terms “crashed” or “error”, indicate that simulations were not successful.

Click the blue lines-icon to the right of the folder and select “Add remark”.

A pop-up window appears. Add a Subject (e.g.” Crashed simulation”) and a Remark, e.g. your recommended action.  Click “OK”.

Verify that the remark has been stored by clicking on “Open” in the blue-line menu of the folder that the remark has been given for and click on the Remarks-tab in the right panel; alternatively click on the “Latest remarks” tab in the left panel.


1.3.     Review simulation KPIs

Find the name of a simulation folder in the left “Structure” panel that a simulation has been run for (i.e., both runner and gate angles are specified). Click on the blue lines-icon to the right of this name and select “Open”.

Click on the “Properties”-tab in the right panel.

Review the property values/KPIs.

Especially note the “Efficiency” values.

1.4.     Find configuration with best efficiency

Click “Open” for other simulation folders. Their properties appear immediately; compare “Efficiency” values and identify the parameter configuration with the best efficiency.

2.  Start other workflow to visualise simulation results

This PLM workflow allows you to branch into other, subordinate workflows. When you complete those, you will return automatically to this PLM workflow.

There are two ways to enter into these sub-workflows. They are described in the following two sub-sections.

User’s guides for these sub-workflows are in a separate document.

2.1.     Visualise file contents from context menu

Select from the structure in the left panel a simulation folder of interest (e.g. review_london / Solver / H05k00 / R05k0 / G20k0 / H05k00_R05k0_G20k0_ptot150014_cfd) and open it. In the right panel, select the “Files”-tab  to find a .cgns-file or .run-file; select “WebSciVis”, “Pressure Distribution” or “Remote Post-Processing” from the blue-lines icon of the file. This will start a sub-workflow to this current one to convert and visualise the file contents.


2.2.     Visualise file contents from visualisation tools

When done with “Browsing of simulation results” click on “Done” in the upper right corner of the right panel.

The next workflow page shows three visualisation tools, each one starting a sub-workflow to this current one. Select one of them. See a separate user’s guide for detailed descriptions.

2.3.     Finish visualisation

Return to the workflow page with the three visualisation buttons. Click on “Done”.

3.    Approval and downloading of results

3.1.     Approve simulation

Identify repository, model and simulations that you want to explicitly approve or reject, either an entire branch under the root node or individual simulations for combinations of parameters.

Click the blue lines-icon to the right of the identified folder and select “Add approval”.

A window pops up.

Select in that window the type of approval from the drop-down list.

Optionally add a description.

Verify that the approval has been stored by clicking on the “Approvals”-tab in the right pane.

See section 1.1 and first part of section 1.2 for how to navigate to the simulation of your choice.


3.2.     Download simulation(s)

Identify which simulations you want to download to your local computer.

Click the blue lines-icon to the right of the identified folder and select “Download”.

The PLM server will create a zip-file.

Subsequently your web-browser will start the download process. Depending on the type of browser you need to click in different places in the current browser window to get access to the downloaded zip-file.

Open the folder with the zip-file. Unpack the zip-file to verify its completeness by comparing its contents with the contents in the PLM web-client.

Download: OBS – 100MB may take about 2 minutes.

Firefox way of downloading of files:

3.3.     Finish the PLM workflow

When done with all approvals and downloads click on “Done” in the upper right corner of the right panel.