Open AccessStreamline flow through curved pipes
Publication year - 1929
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1929.0089
Subject(s) - dimensionless quantity , shear stress , mechanics , drag coefficient , drag , curvature , gravitational acceleration , geometry , materials science , mathematics , physics , gravitation , classical mechanics
C, a numerical coefficient , defined, as Fd /8μv representing the increase of resistance due to curvature,d , diameter of pipe. D, mean diameter of coil.d /D, curvature ratio. F, intensity of frictional drag on wall of pipe,i. e ., shear stress at boundary,g , gravitational acceleration,m , hydraulic mean depth, = area/perimeter,v , mean velocity of flow, = volume flowing per unit time/cross sectional area of pipe,ρ , density of fluid,μ viscosity of fluid. All the values given in the paper are dimensionless, except in those cases in which some dimension is specifically stated.