Usage patterns
渦を巻くto swirl; to form a vortex
The river's current is swirling around the rock.
〈事〉の渦に巻き込まれるto get swept up into the chaos/whirl of something
He was unexpectedly swept up into the political turmoil.
渦を巻き起こすto stir up a commotion or sensation
The scandal stirred up a huge uproar.
Expressions
笑いの渦roar of laughter; burst of laughter