Civil Engineering - GATE Exam Questions - Discussion

Discussion Forum : GATE Exam Questions - Section 1 (Q.No. 24)
24.
X-component of velocity in a 2-D incompressible flow is given by u = y2 + 4 xy. If Y-com-ponent of velocity 'v' equals zero at y = 0, the expression for 'v' is given by
4y
2y2
-2y2
2xy
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.

Phanindra said:   6 years ago
Good explanation. Thanks @Geethu.

Sheela said:   6 years ago
Thanks @Geethu.

Geethu said:   6 years ago
Du/dx +dv/dy = 0.
D/dx (y^2 +4xy) + d/dy (v-unknown) = 0,
4y + d/dy (v-unknown) =0,
d/dy (v-unknown) = - 4y,
Integrate on both sides wrt y.
V= - 2y^2.
(3)

Sheela said:   8 years ago
I didn't understand. Please anyone help me.

Siva said:   8 years ago
I did not understand this. Please, anyone explain.

Denny said:   9 years ago
du/dx + dv/dy = 0.
Appy that then you'll get -2y^2.

Minakshi said:   9 years ago
Not getting this, Please explain me again.

Pran said:   9 years ago
Please explain me again.

Rihaan said:   9 years ago
I didn't get it, please explain me once.

Ritesh kumar said:   10 years ago
Apply continuity equation.


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