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Contents of the Unconfined Flow PDF

List of 27 Unconfined Flow Formulas

Change in Drawdown given Discharge

Coefficient of Aquifer Permeability considering Discharge per Unit Width of Aquifer

Coefficient of Aquifer Permeability given Maximum Height of Water Table

Coefficient of Aquifer Permeability given Water Table Profile

Coefficient of Permeability when Equilibrium Equation for Well in Unconfined Aquifer

Depth of Water in Pumping Well when Steady Flow in Unconfined Aquifer is Considered

Discharge at Downstream Water Body of Catchment

Discharge at Edge of Zone of Influence

Discharge Entering Drain per Unit Length of Drain

Discharge per Unit Width of Aquifer at any Location x

Discharge per Unit Width of Aquifer considering Permeability

Discharge when Drawdown at Pumping Well is Considered

Drawdown at Pumping Well

Drawdown when Steady Flow of Unconfined Aquifer

Equation for Water Divide

Equation of Head for Unconfined Aquifer on Horizontal Impervious Base

Equilibrium Equation for Well in Unconfined Aquifer

Length about Discharge per Unit Width of Aquifer

Length when Discharge entering per Unit Length of Drain is Considered

Length when Maximum Height of Water Table is Considered

Mass Flux Entering Element

Maximum Height of Water Table

Natural Recharge given Total Head

Recharge when Maximum Height of Water Table

Saturated Thickness of Aquifer when Steady Flow of Unconfined Aquifer is Considered

Transmissivity when Discharge at Drawdown is Considered

Water Table Profile Neglecting Depths of Water in Drains

Variables used in Unconfined Flow PDF

a Water Divide
h Water Table Profile (Meter)
H Saturated Thickness of the Aquifer (Meter)
h₁ Piezometric Head at Downstream End (Meter)
H₁ Water Table Depth (Meter)
H₂ Water Table Depth 2 (Meter)
h_m Maximum Height of Water Table (Meter)
h_o Piezometric Head at Upstream End (Meter)
h_w Depth of Water in the Pumping Well (Meter)
H_w Head (Meter)
K Coefficient of Permeability (Centimeter per Second)
L Length between Tile Drain (Meter)
L_stream Length between Upstream and Downstream (Meter)
M_x1 Mass Flux Entering the Element
Q Discharge (Cubic Meter per Second)
q₁ Discharge at Downstream Side (Cubic Meter per Second)
q_d Discharge per unit Length of the Drain (Cubic Meter per Second)
Q_u Steady Flow of an Unconfined Aquifer (Cubic Meter per Second)
q_x Discharge of Aquifer at any Location x (Cubic Meter per Second)
r Radius at the Edge of Zone of Influence (Meter)
R Natural Recharge (Cubic Meter per Second)
r₁ Radial Distance at Observation Well 1 (Meter)
r₂ Radial Distance at Observation Well 2 (Meter)
R_w Radius of the Pumping Well (Meter)
s Change in Drawdown (Meter)
s_w Drawdown at the Pumping Well (Meter)
T Transmissivity of an Unconfined Aquifer (Square Meter per Second)
V_x Gross Velocity of Groundwater
x Flow in 'x' Direction (Cubic Meter per Second)
Δy Change in 'y' Direction
ρ_water Water Density (Kilogram per Cubic Meter)

Constants, Functions and Measurements used in Unconfined Flow PDF

Constant: pi, 3.14159265358979323846264338327950288
Archimedes' constant
Function: ln, ln(Number)
The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.
Function: sqrt, sqrt(Number)
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Measurement: Length in Meter (m)
Length Unit Conversion
Measurement: Speed in Centimeter per Second (cm/s)
Speed Unit Conversion
Measurement: Volumetric Flow Rate in Cubic Meter per Second (m³/s)
Volumetric Flow Rate Unit Conversion
Measurement: Kinematic Viscosity in Square Meter per Second (m²/s)
Kinematic Viscosity Unit Conversion
Measurement: Density in Kilogram per Cubic Meter (kg/m³)
Density Unit Conversion

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