How does the Venturi effect influence water flow?

The Venturi effect describes how fluid dynamics operate when a fluid flows through a constricted section of a pipe. As the fluid enters the narrower section, its velocity increases, which, according to Bernoulli's principle, leads to a drop in pressure in that region. Because of this pressure differential created by the increased velocity, the area of lower pressure can allow air or other gases to enter the system. This is why option C, stating that the Venturi effect allows air to enter areas of lower pressure, is the correct choice.

Understanding the Venturi effect is critical in various applications, such as in carburetors and atomizers, where the principle is employed to mix air and fuel efficiently. Recognizing how changing pressure zones interact with air and water flow is essential for mastering fluid mechanics in practical scenarios, especially in mobile water supply systems where managing air intake can impact performance.