Section: Fluid Mechanics | Marks: 2
The figure given below shows typical non-dimensional velocity profiles for fully developed laminar flow between two infinitely long parallel plates separated by a distance a along y-direction. The upper plate is moving with a constant velocity U in the x-direction and the lower plate is stationary. Match the non-dimensional velocity profiles in Column I with the pressure gradients in Column II. Column I Column II P. profile I 1. 0 p x ∂ > ∂ Q. profile II 2. 0 p x ∂ < ∂ R. profile III 3. 0 p x ∂ = ∂
- A. P − 2; Q − 3; R − 1
- B. P − 3; Q − 2; R − 1
- C. P − 3; Q − 1; R − 2
- D. P − 1; Q − 2; R − 3 -3 -2 -1 0 1 2 3 0 1 u/U I II III a y
Answer: A. P − 2; Q − 3; R − 1