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I I 000E
Classification of Roughness Types
Derivation of General Expression for Friction
6 other sections not shown
Anthony Falls assumed boundary layer Colebrook-White equation commercial pipes computed corrugated metal pipes corrugated pipe diameter dimensionless dimensions distance drag coefficient equal experimental data fluid form drag friction factor curve friction loss fully turbulent groove head loss high Reynolds numbers Hydraulic inches increasing Reynolds number indicated interference flow isolated roughness flow isolated-roughness flow Karman laminar flow measurements ness Nikuradse Nikuradse's obtained open channels parameter phenomena pipe flow pipe materials plate produce wake-interference flow quasi-smooth flow regular roughness patterns relative roughness rough conduits rough pipes rough wall rough-pipe flow roughened roughness crests roughness index roughness spacing sand grains sand-coated pipes Schlichting Schlichting's sharp-edged strip roughnesses shearing stress skimming flow smooth-pipe curve smooth-pipe flow Streeter strip-type transition turbulence constant two-dimensional flow type of flow type of roughness velocity distribution curves velocity distribution data velocity distribution equations vortex vortices wake wall Reynolds number wall roughness wall velocity