Section: Fluid Mechanics | Marks: 2
Consider the steady flow of a uniform stream past a circular cylinder, for a viscous fluid. The following two cases are compared: (I) cylinder is rotating at a slow rate about its axis (II) cylinder is not rotating. Consider the statements — P: The lift force in case I is zero; Q: The lift force in case II is zero; R: The drag force in case I is non-zero; S: The drag force in case II is zero. Which one of the following combinations is TRUE?
- A. P, Q, R
- B. P, R, S
- C. P, S
- D. Q, R