👉 A fixed fluid is a type of fluid that remains in a constant, unchanging volume within a closed system or container. Unlike other fluids that can expand or contract with changes in pressure or temperature, fixed fluids maintain their volume regardless of external conditions. This characteristic is due to the fluid being confined within a rigid or semi-rigid environment, such as a sealed tank or a container with fixed walls. Examples of fixed fluids include water in a closed container, oil in a sealed bottle, and certain types of gases trapped within porous materials. The key feature of fixed fluids is their inability to change in volume, making them distinct from dynamic fluids that can adjust their volume.
