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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.