Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 21 (Q.No. 43)
43.
If the stream function is ψ = 2 xy, then the velocity at a point (1, 2) is equal to
2
4
20
16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Veeru said:   8 years ago
Thank you @Roy.

Roy said:   8 years ago
U=-d£/dy=-2x=-2*1=-2. V=d£/dx=2y=2*2=4.

Velocity=√{u^2+V2}=√20.

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