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influx
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I know that the circulation is defined as the counter clock wise integral around the closed curve of the flow velocity component along the curve but what is its meaning in real life? I mean what does circulation actually refer to in real life? Also could someone explain the above image? What is the relationship between stream lines and the closed curve? Sorry for the lack of working out but it's just an issue that is baffling me at the moment and I'm unsure of how to proceed