An Initial Values node is added by default to each physics interface.
To enter initial values, in the Model Builder, click the
Initial Values node under a physics interface node. In the
Settings window, enter the
Initial Values for all dependent variables (fields) in the physics interface. The default initial values are usually zero.
To use different initial values in different domains, add another Initial Values node from the
Physics ribbon toolbar (Windows users),
Physics context menu (macOS or Linux users), or right-click to access the context menu (all users).
See Dependent Variables for more information about handling and plotting initial values.