👉 Exit fluid, also known as ejector fluid or exit liquid, is a secondary fluid used in mechanical systems to enhance efficiency by reducing pressure losses and improving flow characteristics, particularly in pumps and turbines. It is typically injected into the system at a specific point to create a pressure differential that assists the primary fluid (usually water or steam) in overcoming resistance and increasing the overall system performance. The exit fluid helps to maintain a more consistent flow rate and pressure, reducing energy consumption and wear on mechanical components. This fluid is usually carefully controlled and managed to ensure optimal system operation and longevity.