A WATER PIPE FOR REDUCING VELOCITY OF FLUID

摘要

PURPOSE: A water pipe for reducing velocity of fluid is provided to mount a waterway of a steep slope by reducing the velocity of fluid and increasing roughness coefficient using vortex of a flow path. CONSTITUTION: A water pipe for reducing velocity of fluid comprises a convex part(110), a recess part(120), a tangent length(130), and a vortex protrusion(200). The convex part is projected from the inner tube to a pipe. The recess part caves in to the inner tube. The tangent length is formed in spiral by connecting ends of curves of the recess part and convex part. The vortex protrusion is formed on the inner side of a corrugated tube(100). The vortex protrusion is projected to the inner tube in order to reduce flux.