Study on Downsizing of Endsill Type Energy Dissipator by Application of Stepped Channels to Spillway Chutes Using the MPS Method

Key Points

• The research examines the potential for downsizing endsill-type energy dissipators using stepped channels on spillway chutes.
• Applied MPS method to evaluate energy dissipation.
• Assessed flow characteristics in stepped channel configurations.
• Analyzed conditions for air entrainment in the flow.
• Identified that water depth can be set based on computed flow characteristics.
• Confirmed potential downsizing of dissipators to approximately two-thirds of traditional systems under specific conditions.