Darcy Velocity

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

darcy velocity 1Darcy velocity, abbreviated as v, also called Darcy flux, is the volumetric flow per unit area of a porous mediun.

 

 

 

 

 

 

 

 

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Darcy Velocity or Flux formula

\(\large{ v =  k \; i   }\)   

Where:

 Units English Metric
\(\large{ v }\) = Darcy velocity or flux \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)
\(\large{ k }\) = hydraulic conductivity \(\large{\frac{ft}{day}}\) \(\large{\frac{m}{day}}\)
\(\large{ i }\) = hydraulic gradient \(\large{dimensionless}\)

Solve For:

\(\large{ k = \frac{ v }{ i }   }\)   
\(\large{ i = \frac{ v }{ k }   }\)   

 

Related Darcy Velocity or Flux formulas

\(\large{ v = \frac { v_s \;  A_v} { A_c}  }\) (Seepage velocity)
\(\large{ v = v_s  \; P  }\) (Seepage velocity)

Where:

 Units English Metric
\(\large{ v }\) = Darcy velocity or flux \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)
\(\large{ A_c }\) = area cross-section of flow \(\large{ft^2}\) \(\large{m^2}\)
\(\large{ A_v }\) = area cross-section of voids \(\large{ft^2}\) \(\large{m^2}\)
\(\large{ P }\) = porosity \(\large{dimensionless}\)
\(\large{ v_s }\) = seepage velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)

 

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Tags: Equations for Velocity Equations for Soil