noun
Meaning 1
A dimensionless number used to determine the motion of fluids due to density differences, defined as the ratio of gravitational forces to viscous forces: Ar=(gL3(ρ-ρ_l)/(ρ_l))/(ν2)=(gL3ρ_l(ρ-ρ_l))/(μ2)\, where g is the local external field, L is the characteristic length of body, (ρ-ρ_l)/(ρ_l) is the submerged specific gravity, ρ_l is the density of the fluid, ρ is the density of the body, ν=μ/(ρ_l) is the kinematic viscosity, and μ is the dynamic viscosity.
Definition source: English Wiktionary via Wiktextract
Topics: fluid-dynamics, natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided