What phenomenon occurs when the flow of fluid causes deflections in a tube?

The phenomenon that occurs when the flow of fluid causes deflections in a tube is best described by vibrations. This situation reflects the idea that as fluid flows through or around a tube (or pipe), it can generate oscillations or fluctuations within the material. These vibrations can be caused by changes in pressure, fluid velocity, or other dynamic forces acting on the tube.

In various applications, monitoring vibrations can be crucial because they can indicate issues like resonance or structural weaknesses, which can have significant implications for the integrity and safety of the system. Understanding this phenomenon allows engineers to design systems that minimize harmful vibrations and ensure smooth fluid flow.

While the fluid flow could lead to turbulence or compression in specific contexts, those effects pertain more to the behavior of the fluid itself rather than the resultant deflections of a rigid tube structure. Dissipation typically refers to the loss of energy in the system, which is a side effect rather than a direct phenomenon associated with deflections. Hence, in this context, vibrations are the most relevant answer to describe the behavior observed in the tube due to fluid flow.