1. What is the Discharge from Well Formula?

The discharge from well formula calculates the rate of flow of water from a well in clay soil conditions. It considers the cross-sectional area of the well and the constant depression head specific to clay soil properties.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Discharge (m³/s)
• \( A_{cs} \) — Cross-sectional area (m²)
• \( H \) — Constant depression head for clay soil (m)

Explanation: The formula calculates the discharge rate based on the well's cross-sectional area and the specific depression head constant for clay soil conditions.

3. Importance of Discharge Calculation

Details: Accurate discharge calculation is crucial for well design, groundwater management, and determining the sustainable yield of wells in clay soil conditions.

4. Using the Calculator

Tips: Enter cross-sectional area in square meters and constant depression head in meters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is cross-sectional area in well calculations?
A: Cross-sectional area refers to the area of the well opening through which water flows, typically calculated as πr² for circular wells.

Q2: Why is the constant 0.25 used specifically for clay soil?
A: The constant 0.25 is derived from empirical studies and accounts for the specific hydraulic properties and permeability characteristics of clay soil.

Q3: How does clay soil affect well discharge?
A: Clay soil has lower permeability compared to sandy soils, resulting in reduced discharge rates and requiring specific calculation methods.

Q4: Can this formula be used for other soil types?
A: No, this formula is specifically designed for clay soil conditions. Different soil types require different constants and calculation methods.

Q5: What factors can affect the accuracy of this calculation?
A: Well construction, soil homogeneity, seasonal water table variations, and measurement accuracy can all impact the calculation's precision.