The fluid flow can be classified as rotational flow or irrotational flow and laminar flow or turbulent flow according to the motion of the fluid elements or fluid particles of the flow and based on what flow patterns do they follow. In positive psychology a flow state also known colloquially as being in the zone is the mental state in which a person performing some activity is fully immersed in a feeling of energized focus full involvement and enjoyment in the process of the activity. In physics fluid flow has all kinds of aspects steady or unsteady compressible or incompressible viscous or nonviscous and rotational or irrotational to name a few.
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