i'm learning mathematica. Do you know how to draw vortex with vector like these?
enter image description here

Moreover I would like a picture like this:

enter image description here Without axes or other indication Thanks

Table[{y/(x^2 + y^2 + 2), -(x/(x^2 + y^2 + 2))}, {x, -3, 3, 
0.3}, {y, -3, 3, 0.3}], PlotTheme -> "Minimal"]    

enter image description here

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