0 votes 0 votes For subcritical flow in an open channel, the control section for gradually varied flow profiles is at the downstream end at the upstream end at both upstream and downstream ends at any immediate section Hydraulics gate2013-ce hydraulics water-resources-engineering flow-measurement-in-channels + – Milicevic3306 asked Mar 25, 2018 • recategorized Nov 18, 2020 by soujanyareddy13 Milicevic3306 11.9k points answer See all 0 reply