Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 3 (Q.No. 1)
1.
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
equal to
one-fourth
one-third
one-half
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 1 of 2.

Apoorva gupta said:   9 years ago
Venna is point of minimum area of stream flow, which occurs after throat due to sudden compaction and hence its diameter is less than orifice diameter.

Muhammad saad said:   1 decade ago
Vena contracta is the point in a fluid stream where the diameter of the stream is the least, and fluid velocity is at its maximum.

Sanjeev said:   8 years ago
The distance of vena-contracta from the orifice is half the diameter of the orifice.

So, The option (D) should be correct.

.

Jai maurya said:   7 years ago
For external mouthpice vena contracta occurs at D/4.

For internal mouthpice vena contracta occurs at D/2.
(3)

Vinay BEL said:   5 years ago
For external mouthpice vena contracta occurs at D/4.

For internal mouthpice vena contracta occurs at D/2.
(5)

Rajneesh singraul said:   7 years ago
D is correct because this vena contracta occurs at a distance of half the diameter of orifice.

Mahesh Krishnan said:   7 years ago
For orifices, vena contracta occurs at 0.5D.

For mouthpiece it is D/4.
(2)

SUJEET KUMAR PRAJAPATI said:   7 years ago
Option D is the correct answer.
(1)

Ankita said:   5 years ago
Yes, D is the correct answer.

Ram said:   7 years ago
D is the correct answer.
(2)


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