Momentum theory

An actuator disk accelerating a fluid flow from right to left

In fluid dynamics, the momentum theory or disk actuator theory is a theory describing a mathematical model of an ideal actuator disk, such as a propeller or helicopter rotor, by W.J.M. Rankine (1865), Alfred George Greenhill (1888) and R.E. Froude (1889).

单词	Actuator disk
释义	Actuator disk 英语百科 Momentum theory In fluid dynamics, the momentum theory or disk actuator theory is a theory describing a mathematical model of an ideal actuator disk, such as a propeller or helicopter rotor, by W.J.M. Rankine (1865), Alfred George Greenhill (1888) and R.E. Froude (1889).
随便看	yarndyeing的意思 Yarn dyeing的意思 yarn dyeing machine的意思 Yarn dyer的意思 yarn dynamics的意思 yarn的意思 yarn的意思 Yarnell的意思 yarn elongation的意思 yarn elongation test的意思 Yarnema的意思 yarnen的意思 yarn的意思 yarners的意思 yarn的意思 yarnets的意思 yarn evenness的意思 yarn evenness controller的意思 yarn evenness tester的意思 yarn examining machine的意思 yarn feeder的意思 yarn feeder block的意思 yarn feeder knife的意思 yarn feeding device的意思 yarn feeding mechanism的意思

Actuator disk

Momentum theory