Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 3 (Q.No. 17)
17.
When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as
free nappe
depressed nappe
clinging nappe
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Afzal said:   3 years ago
Thanks for the explanation @Sdo Ali Ejaz.

Puski said:   5 years ago
Thanks you @Sdo Ali Ejaz.

SDO ALI EJAZ said:   6 years ago
Nappe = flowing water sheet over weir.

Depressed nappe = partially filled with air and creates negative pressure.

Clinging nappe = no air left and increased discharg.

Clinging nappe has 25-30% more Discharge then free nappe.
(13)

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