26.17 Checking Your Case Setup

After you have set up your case, and prior to solving it, you can check your case setup using the Case Check dialog box (Figure  26.17.1). This function provides you with guidance and best practices when choosing case parameters and models. Your case will be checked for compliance in the mesh, models, boundary and cell zone conditions, material properties, and solver categories. Established rules will be available for each category, with recommended changes to your current settings. At your discretion, you may elect to apply the recommendations, or keep your current settings.

To access the Case Check dialog box (Figure  26.17.1), go to

Run Calculation Check Case...

If there are no problems with your case setup, then an information dialog box (Figure  26.17.2) will appear stating that no recommendations need to be made at this time, otherwise, the Case Check dialog box will open.

Figure 26.17.1: The Case Check Dialog Box

Figure 26.17.2: The Information Dialog Box

In the Case Check dialog box, each of the tabs Mesh, Models, Boundaries and Cell Zones, Materials, and Solver may contain recommendations. For each of the tabs that are enabled, best practices will be listed.

In some cases, the dialog box will be split based on the method that the recommendation is applied. There are two ways you can apply the listed recommendations:

Automatic Implementation   : ANSYS FLUENT applies the change for you.

Manual Implementation   : You will manually change your case settings.

Automatic Implementation

To the left of each of the recommendations listed under Automatic Implementation (e.g., Figure  26.17.4), there is an enabled Apply check box. An enabled check box will result in ANSYS FLUENT applying the change to your case automatically. If there are some recommendations that you do not want ANSYS FLUENT to implement automatically, then click the Apply check box to toggle off and disable the implementation of a particular recommendation. After going through all the tabs and determining which rules you want applied automatically, click the Apply button at the bottom of the dialog box. Changes to your settings will be applied to all recommendations throughout the dialog box with an enabled Apply check box. ANSYS FLUENT will print a message in the console notifying you that the applied recommendation has been implemented.

ANSYS FLUENT will ask you if you want to save the case before proceeding to the next step. If you choose Yes, the Select File dialog box (see Section  2.1.6) will open allowing you to save your case with the new settings. If you select No, all the changes made to the case file will be lost once you exit ANSYS FLUENT.

Manual Implementation

For recommendations that are listed under Manual Implementation, ANSYS FLUENT cannot apply the changes for you. Therefore, if you opt to make a change to your current settings, based on the listed recommendations, then you will need to manually make the changes by opening the affected dialog boxes or task pages and applying what was recommended.

To the right of the recommendations is a ?, which essentially acts as a help button, leading you to related documentation on the specific topic.

At the bottom of each recommendation, there is a path which will guide you to the dialog box or task page where you can make the changes. For example, in the Mesh tab, you will see the following recommendation:

Check your mesh.
(General: Click [Check])

To perform the action, highlight General in the navigation pane, then click the Check button in the Mesh group box. You will see a path for each recommendation, in each of the tabs.

Each of the case check rules are described in the following sections: