Vortex, Maelstrom
noun
In the middle of a whirlpool you'll find a spinning vortex of water. You really don't want to get sucked in there.
かちゅう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼は離婚騒動で渦中の人だよ。
He’s in a vortex of divorce turmoil.