relative roughness factor

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relative roughness factor [′rel·əd·iv ¦rəf·nəs ‚fak·tər]

(fluid mechanics)

Roughness of pipe-wall interior (distance from peaks to valleys) divided by pipe internal diameter; used to modify Reynolds number calculations for fluid flow through pipes.

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No references found			relative maximum relative minimum relative molecular mass relative momentum Relative Motion Relative Motion, Principle of relative movement relative movement line relative orbit relative path relative pathname relative permeability relative permittivity relative plot relative position relative power gain relative pressure response relative primes relative quickness Relative Record Data Set relative reference relative refractory period relative relief relative resistance relative response relative roughness factor relative scatter intensity relative search relative sector search relative settlement relative square search relative stability test relative sunspot number relative time relative topography relative topology relative transmitting response relative triple precision relative vector relative velocity relative volatility relative wind relative-density bottle relative-state interpretation relatively closed set relatively compact set relatively open set relatively prime Relativism Relativistic Astrophysics relativistic beam			relative regional portal blood flow Relative Reinforcing Value of Physical Activity Relative Relief Relative Relief Relative Reserved Block Period relative resistance Relative Resource Equity Formula relative response Relative Retention Time Relative return Relative Returns Relative rights Relative risk Relative risk Relative risk Relative risk Relative risk Relative risk Relative Risk Aversion relative risk ratio relative risk ratio relative risk ratio relative risk ratio relative risk ratio relative risk ratio Relative risk reduction Relative Risk Site Evaluation Relative Risk Site Evaluation Model Relative Risk Standard Deviation Relative Root Mean-Squared Error relative roughness factor relative scatter intensity relative scotoma relative scotoma relative scotoma Relative Sea Level Relative Sea Level Rise relative search Relative Sector relative sector search relative settlement Relative Severity Relative shape anisotropy Relative Shoot Dry Weight Relative Side-Lobe Level Relative Solar Heat Gain Relative Sound Pressure Level Relative Source Time Function relative specificity Relative Spectral Response Relative Spectral Response Function Relative Spectral Technique relative square search relative stability test Relative standard deviation Relative Standard Deviation for Reproducibility Relative Standard Error

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