Abstract
90 degrees V-shaped water cushion energy dissipator has the advantages with a compact, a cheap construction cost and easy maintenance. However, there was no experiment report of the effect of this energy dissipator. This paper presented the experimental dissipating effects of V-shaped water cushion depth in the steep slope channel (the upstream channel inclination and the downstream one was 1/33). By the patent formula, the depth of water cushion was 50% of the velocity head of the water rushing into the water cushion. In this case, the water was often splashed out to the outside of the channel without dissipating. From this study, when the depth was set to 60% of the velocity head, it became clear that the most jumping inhibiting effect was shown.
