Groundwater Velocity Calculator

Formula

The formula to calculate the Groundwater Velocity (Vgw) is:

\[ Vgw = \frac{K \cdot L}{n} \]

Where:

\(Vgw\) is the groundwater velocity
\(K\) is the horizontal conductivity
\(L\) is the horizontal hydraulic gradient
\(n\) is the effective porosity

Groundwater Velocity Definition

Groundwater velocity measures the speed at which water flows through the ground, typically during a flood. The speed of the water depends on several factors, including the porosity of the soil.

Example Calculation

Let's assume the following values:

Horizontal Conductivity (K) = 0.01 m/s
Horizontal Hydraulic Gradient (L) = 0.02
Effective Porosity (n) = 0.25

Using the formula to calculate the Groundwater Velocity (Vgw):

\[ Vgw = \frac{0.01 \cdot 0.02}{0.25} = 0.0008 \]

The Groundwater Velocity (Vgw) is 0.0008 m/s.