single word requests - How to describe the movement of a dress when the person twirls around?

Flare? "To open or spread outwards, as the sides of a bowl, a skirt, the mouth of a horn."

(As used in a lovely analogy from a paper on the sun's magnetic field: "Accordingly, the Sun with the heliosheet is like a bashful ballerina who is repeatedly trying to push her excessively high flaring skirt downward.").