Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 1 (Q.No. 3)
3.
In a depressed nappe
the pressure below the nappe is atmospheric
the pressure below the nappe is negative
the pressure above the nappe is atmospheric
the pressure above the nappe is negative
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
25 comments Page 2 of 3.

Dad said:   9 years ago
What is the use of nappe and weir?

Sam said:   10 years ago
Which is the correct answer?

Gurmeet Singh said:   10 years ago
What is the means of negative pressure?

Kanhaiya yadav said:   1 decade ago
What is nappe?

Rajendra Singh said:   1 decade ago
Because pressure toward downward direction is positive and toward upward direction is negative.

Biradar yogesh said:   1 decade ago
Half of double cone is called nappe.

Fakhre Alam said:   1 decade ago
Depressed Nappe:

In this type, a partial vaccum is created between the nappe and the weir. Discharge for such a flow situation is 8 to 10% greater than that with a free nappe.

Jatin said:   1 decade ago
Can any one tell me about the aeration of nappe?

Ganesh Gole said:   1 decade ago
One half of a double cone is called a nappe.

Vikas mahant said:   1 decade ago
The term Nappe when used in relation to hydro-engineering refers to the sheet of water over-topping a dam. It is an important issue in dam construction because unless air can be introduced into the nappe, the vibration of the water can lead to dam failure.


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