Understanding Hydraulic Jump: Basics & Calcs

[fonseh]

Homework Statement

http://www.brighthubengineering.com...nnel-flow-basics-hydraulic-jump-calculations/

In th earlier part of this notes , i was told that the The hydraulic jump is an abrupt transition to subcritical from supercritical flow.

but , in the diagram , we can see that the hydraulic jump occur when the water from the supercritical enter the subcritical region...

Homework Equations

The Attempt at a Solution

which is correct ? I think the second part is correct because when the hydraulic jump occur , it's usually when the high speed velocity water enter the slower one . In the region of hydraulic jump , the velocity of the subcritical region is lower .

 

[CivilSigma]

Hydraulic jump occurs from super to sub critical flow.

 

[fonseh]

So , the statement that The hydraulic jump is an abrupt transition to subcritical from supercritical flow is wrong ?

 

[CivilSigma]

So , the statement that The hydraulic jump is an abrupt transition to subcritical from supercritical flow is wrong ?

Yes.