Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 4 (Q.No. 47)
47.
For the two dimensional flow, the stream function is given by ψ = 2xy. The velocity at a point (3, 4) is
Discussion:
15 comments Page 2 of 2.
Triguna sethi said:
5 years ago
U=dy/dx=2y=2*4=8.
V=dy/dy=2x=2*3=6.
Ivl=lv^+u^l=l8^+6^l=l64+36l^1/2=(100)^1/2= √(100)=10.
V=dy/dy=2x=2*3=6.
Ivl=lv^+u^l=l8^+6^l=l64+36l^1/2=(100)^1/2= √(100)=10.
Shehbaz said:
4 years ago
Thanks all.
Deepankar said:
4 years ago
@All.
U = -d(psi)/dy.
And, V= d(psi)/dx.
So that makes U = -6 and V = 8.
U = -d(psi)/dy.
And, V= d(psi)/dx.
So that makes U = -6 and V = 8.
Apcivilian said:
4 years ago
You're absolutely right, Thanks @Deepankar.
Niki said:
1 year ago
2x = 2 * 3 = 6.
2y = 2 * 4 = 8.
√((6)^2 + (8)^2) = 10.
2y = 2 * 4 = 8.
√((6)^2 + (8)^2) = 10.
(5)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers