👉 Unflowing is a concept in fluid dynamics and thermodynamics that refers to the state of a fluid where it does not flow freely within its container. This means that there is no velocity difference between the fluid's surface and its interior, which implies that the fluid cannot pass through any surfaces or walls without entering the container. In other words, if a fluid has unflowing properties, it will be characterized by a lack of continuity across its entire volume, meaning that the fluid will not flow continuously