Aerospace Engineering > GATE 2009 > Vortex Dynamics
Two vortices of the same strength and sign are placed a distance d apart as shown below. Assume that the vortices are free to move and the fluid is ideal.
Which of the following statements is true ?
A
Vortices 1 and 2 spiral inwards with an initial angular speed Γ2π d2 to finally merge and form one vortex of twice the strength.
B
Vortices 1 and 2 spiral inwards with an initial angular speed to finally merge and form one vortex of twice the strength.
C
Vortices 1 and 2 perpetually revolve about the midpoint P with radius of revolution d2 and angular speed Γπ d2
D
Vortices 1 and 2 perpetually revolve about the midpoint P with radius of revolution d2 and angular speed Γ2π d2

Correct : d

Similar Questions

If → denotes increasing order of intensity, then the meaning of the words dry → arid → parched is analogous to diet → fast → ______. Which one of the given opt...
#10 MCQ
If two positive non-zero real variables x and y are such that (x+y) is proportional to x/y, then x+y:
#11 MCQ
Consider the following sample of numbers: 9, 18, 11, 14, 15, 17, 10, 69, 11, 13. The median of the sample is
#12 MCQ

Related Topics

No tags found

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: