Question

Which of the following statements is more relevant?

• A. In kinematics of fluid flow, pressure is a vector field.
• B. In the Lagrangian approach, a fluid particle of fixed mass is considered.
• C. Fluid kinematics deals with the action of the forces in producing or changing motion of fluid.
• D. In the Eulerian method, control volume approach in not used.

Answer 1

Answer:

B. In the Lagrangian approach, a fluid particle of fixed mass is considered.

The most relevant statement in fluid kinematics is option 2, which states that the Lagrangian approach considers a fluid particle of fixed mass. This approach tracks individual fluid particles and their properties over time, while the Eulerian approach defines a control volume and describes fluid properties as fields within that volume. Pressure is a scalar quantity, not a vector field. Fluid kinematics deals with the motion of fluids without reference to forces.