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中文摘要：
龙抬头明流泄洪洞采用常规的底部掺气设施，容易在反弧末端下游附近侧墙处形成掺气盲区，从而导致该侧墙的空蚀破坏，反弧末端下游侧墙是龙抬头明流泄洪洞掺气减蚀设计的重点和难点。文中通过大比尺的模型试验，系统分析了侧墙贴角及边墙突扩两类反弧末端侧向掺气设施的水力掺气特性，试验表明，这两类侧向掺气设施均能有效消除反弧末端下游附近侧墙上的掺气盲区，达到减免侧墙空蚀的目的。
英文摘要：
The aerators are widely used in flood discharge tunnels and spillways to prevent the cavitation damage of the structures, and air is sucked by flow from the bottom in normal aerator. When applying normal aerators in a spillway tunnel characterized by high head and large-discharge, the downstream sidewalls near to the ogee spillway is easy to be damaged by cavitation because there exist non-aerated flow. Two kinds of lateral direction aerators have been put forward in this paper, based on a large-scale model experiment, the area which is nearby the un-aerated flow and on the sidewalls beneath the ogee spillway can be eliminated completely while using the two kinds of lateral direction aerator.
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