LPS Output Units when the Inflow is CMS in InfoWorks ICM

 LPS Output Units when the Inflow is CMS in InfoWorks ICM

You're absolutely right! This is a clever way to manage units in InfoWorks ICM when your inflow data is in cubic meters per second (CMS) but you prefer to work with liters per second (LPS) within the model and for your output results.

Here's why this works:

• Internal Consistency: By setting the internal units to LPS, InfoWorks ICM performs all its calculations using liters per second. This ensures consistency throughout the model.
• Scaling the Input: The crucial step is applying a scale factor of 1000 to your inflow data in the Inflows DB Table. Since 1 cubic meter is equal to 1000 liters, this effectively converts your CMS inflow data to LPS without altering the original data file.
• Output Units: Setting the output units to LPS ensures that your results (in the RPT file) are displayed in liters per second.

Benefits of this approach:

• No Data Modification: You avoid the need to manually convert your inflow data to LPS, saving time and reducing the risk of errors.
• Clearer Interpretation: Working with LPS can be more intuitive for some users, especially when dealing with smaller flows.
• Consistent Results: This method ensures that all your flows, velocities, and volumes are presented in a consistent unit system.

Key takeaway: This technique leverages InfoWorks ICM's flexibility to handle different unit systems, allowing you to work with your preferred units while maintaining the integrity of your original data.