Lewis Ferry Moody

Lewis Ferry Moody
Born5 January 1880
DiedApril 18, 1953(1953-04-18) (aged 73)
NationalityAmerican
OccupationMechanical engineer
EmployerPrinceton University
Known forMoody chart
AwardsElliott Cresson Medal (1945)

Lewis Ferry Moody (5 January 1880 – 18 April 1953) was an American engineer and professor, best known for the Moody chart, a diagram capturing relationships between several variables used in calculating fluid flow through a pipe. He states that his goal is to present a simple and convenient means for engineers to estimate the friction factor inside the new pipes and conduits running full with steady flow . He has 23 patents for his inventions. He was the first Professor of Hydraulics in the School of Engineering at Princeton.