Hydraulic Jump within Gradually Expanding Channel

by Anat Arbhabhirama, Assoc. Prof. of Hydr. Engrg.; Asian Inst. of Technol., Bangkok. Thailand,
Alejandro U. Abella, Hydr. Engr.; Mindanao Development Authority, Mindanao, Philippines,

Serial Information: Journal of the Hydraulics Division, 1971, Vol. 97, Issue 1, Pg. 31-42

Document Type: Journal Paper


This expanding channel jump is considered to behave as a section of a circular jump. Equations describing the characteristics of the expanding channel jump are derived. The observations were conducted using six different angles of divergence. The experimental results showed a close agreement with the theoretical solutions. The general equation developed for the jump, with proper evaluation of the side pressure force effect, describes the phenomenon regardless of the angle of divergence. An empirical expression for approximating the location of the jump within the transition was also developed.

Subject Headings: Hydraulic jump | Agreements and treaties | Empirical equations

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