Define Gravity

1. In the browser External Loads folder, right-click Gravity, and then click Define Gravity. Alternatively, you can double-click the Gravity node.

   If necessary, clear the check mark next to Suppress.

2. Select the Case edge as shown in the image to specify a vector for gravity. You can use the Invert or Reverse command to change directions.
   
3. Click OK.

   Note that the direction of gravity has nothing to do with any external notion of "up" or "down," but is set according to the vector you specify.

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