Which one of the following statements concerning fluid streamlines is true?
A)In steady flow,streamlines must remain parallel and equally spaced.
B)In turbulent flow,two or more streamlines may cross.
C)In turbulent flow,streamlines can begin or end at any point.
D)Streamlines are perpendicular to the velocity of the fluid at every point.
E)In steady flow,the pattern of streamlines does not change with time.

Question

Quizplus · Accepted Answer

Streamlines in a steady flow represent the path that fluid elements follow, and by definition, these paths do not change over time. This means the pattern of streamlines remains constant, indicating the flow's direction and speed at every point. Options A, B, C, and D are incorrect because streamlines in steady flow do not have to remain parallel and equally spaced, they cannot cross in turbulent flow, they do not begin or end at arbitrary points in turbulent flow, and they are always tangent to the velocity vector of the fluid, not perpendicular.

Which One of the Following Statements Concerning Fluid Streamlines Is