👉 In physics, a system that is described by its internal energy and temperature but does not exhibit any external forces or interactions. Non-hydraulically describes systems where the pressure of the fluid is not constant, meaning that there is no net flow of mass through the system. Non-hydraulically also refers to non-continuous systems in which the flow is not continuous across a surface. This concept is used in various fields such as fluid dynamics and heat transfer, where it helps to understand how fluids