Alongside viewing 1D River Results and 2D Results to visualise the flows and water levels, you may be interested in the specific flow values passed across the link-lines.
If your simulations involve river networks linked to 2D components, an additional results file containing the 1D link flow summary is written in .csv format. The name and location of the 1D link flow summary file is provided on the 'General' tab of the 2D simulation window.