Experts have conducted several researches to study the scientific phenomenon behind the whistling of teakettles. They explain it in terms of a steam kettle’s fluid dynamics. Why kettles whistle is actually a double mechanism process. The process initiates due to the steam produced in a kettle when the water is boiled. The steam produced in the kettle starts moving upwards. A kettle acts as a resonator in which the steam starts resonating and contracting. This contraction of steam makes it form a jet. It all depends on the speed of this steam jet how it would be funneled through the spout.
