# Civil Engineering - GATE Exam Questions - Discussion

Discussion Forum : GATE Exam Questions - Section 1 (Q.No. 5)
5.
In a steady radial flow into an intake, the velocity is found to vary as (1/r2), where r is the radial distance. The acceleration of the flow is proportional to
1/r5
1/r3
1/r4
1/r
Explanation:
No answer description is available. Let's discuss.
Discussion:
27 comments Page 1 of 3.

From Fluid kinematics. For radial flow the normal acceleration is An = dvn/ds+Vr2/r,

Acceleration is proportionate to V2/r, therefore 1/r5.

Ram said:   10 years ago
When the acceleration was take place on frist line.

Dileep barnwal said:   9 years ago
Acceleration a = v*(dv/ds).
=> ao < 1/r5.

Chandra said:   9 years ago
I cannot understand this concept. Can anybody elaborate me please?

Aparna said:   9 years ago
v2/r but; v = 1/r2 so v = 1/r4+1; v = 1/r5.

Yoga said:   8 years ago
Acceleration a = V2/r = (1/r2)2/r = 1/r5.

Deepak said:   8 years ago
I agree with you @Aparna.

TEJA said:   8 years ago
Nice @Aparna.

Pran said:   8 years ago