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What you refer to as Air Speed is referred by E+ as Flow Rate. Look up in the .rdd file which you will find under the run subfolder of your project folder.

If you search that file for flow rate you will find current and standard density flow rates of different liquids and gases in the model. Hopefully one of them would be the one you look for.

You can use the Input Output Reference to check about them.

What you refer to as Air Speed is referred by E+ as Flow Rate. Look up in the .rdd file which you will find under the run subfolder of your project folder.

If you search that file for flow rate you will find current and standard density flow rates of different liquids and gases in the model. Hopefully one of them would be the one you look for.

You can use the Input Output Reference to check about them.

Edit: Once you find the name of the Variable you need in the .rdd file (and this is the list of all available variables to your version of E+ and to your specific model) you will need to select them for Output.

In order to select a variable to be output you may use the add_output_variable measure. You could use the link or within OS Measures tab click Find Measures on BCL in the lower right corner. Then Reporting > QAQC. When you run the measure you will have to enter the Variable Name, Reporting Frequency and the Key Name.

You should run the measure once so use the apply measure now from the Components&Measures menu. After you run the measure and the simulation examine the .err file to make sure it was added correctly.