the quality of being helical or spiral in form

in fluid dynamics, a measure of the amount of rotation or twist in a fluid

द्रव का घुमाव

English Usage: The helicity of the fluid affects its turbulence and flow characteristics.

Hindi Usage: द्रव का घुमाव इसकी अशांतता और प्रवाह विशेषताओं को प्रभावित करता है।