"ka" column or row of the kana syllabaryIntroduction to Damsdam terminology

momentum reducer

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A momentum reducer is a structure that prevents water from flowing out of a flood discharge because the energy of the water flowing out of the discharge can be quite large, which may cause the point where the water falls to be cut off. A momentum reducer is literally a structure that reduces the momentum of the water.

There are several types of force reducers, which are selected based on the dam type, geology, and surrounding environment. Using the water jumping phenomenonfloodwayand water is released into the air and allowed to fall.drainage ditchas well as impact and jet diffusion types.

The water-jumping type is often used in force-reduction works, and sometimes a sub-dam is installed to raise the water level in the force-reduction basin. There are also the ski jump type and the free-fall type.

This article was written by.
Shin Jinma

Dam enthusiast who loves Momosuke Fukuzawa / Dampedia and Dam News administrator / Certified Dammeister (01-018) by the Japan Dam Foundation / Started selling discharge caution goods.https://shop.dampedia.com

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