| CALC : Flow : Numbers 015 : Pipeline Relative Roughness Rr From Roughness and Diameter : Calculator
Description : Calculate the pipeline relative roughness number Rr from the internal roughness r and the pipeline internal diameter.
Input Variables :
- D = Section Internal Diameter
- r = Section Internal Roughness
Output Variables :
- Rr = Internal Pipeline Dimensionless Roughness Number
Calculation :
Rr = r / D
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