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In a Lagrangian system, the position of a fluid particle in a flow is described asandwhere t is the time whileand k are constants. The flow is
  • a)
    unsteady and one-dimensional
  • b)
    steady and two-dimensional
  • c)
    steady and one-dimensional
  • d)
    unsteady and two-dimensional
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In a Lagrangian system, the position of a fluid particle in a flow is ...
x direction scalar of velocity field,

y direction scalar of velocity field

u & v are non zero scalar t 0 so it is 2D flow.
Continuity equation for steady flow,


0 + 0 = 0 Continuity is satisfied.
Hence flow is 2D and steady.
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In a Lagrangian system, the position of a fluid particle in a flow is described asandwhere t is the time whileand k are constants. The flow isa)unsteady and one-dimensionalb)steady and two-dimensionalc)steady and one-dimensionald)unsteady and two-dimensionalCorrect answer is option 'B'. Can you explain this answer?
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