👉 A subsidiary fluid is a type of fluid that is contained within or associated with another fluid, typically within a larger fluid system such as a liquid or gas. This fluid can be found in various forms, including dissolved substances, suspended particles, or gases that are physically mixed within the primary fluid. For instance, in a solution like saltwater, dissolved salts constitute the subsidiary fluid, while bubbles of air trapped within the water are another example. The behavior and properties of the subsidiary fluid can significantly influence the characteristics of the larger fluid system, impacting its density, viscosity, and other physical properties.
