Section: Fluid Mechanics | Marks: 1
Which of the following statements are true? (i) Conservation of mass for an unsteady incompressible flow can be represented as ββ πββ= 0, where πββ denotes velocity vector. (ii) Circulation is defined as the line integral of vorticity about a closed curve. (iii) For some fluids, shear stress can be a nonlinear function of the shear strain rate. (iv) Integration of the Bernoulliβs equation along a streamline under steady-state leads to the Eulerβs equation.
- A. (i), (ii) and (iv) only
- B. (i), (ii) and (iii) only
- C. (i) and (iii) only
- D. (ii) and (iv) only
Answer: C. (i) and (iii) only