1. What is Cross-Sectional Area of Well?

The Cross-Sectional Area of a well is the area of a two-dimensional shape that is obtained when the well is sliced perpendicular to its axis. It is an important parameter in hydrogeology for determining the specific capacity of wells, particularly in coarse sand aquifers.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Acs \) — Cross-Sectional Area (m²)
• \( Q \) — Discharge (m³/s)
• \( H \) — Constant Depression Head for Coarse Sand (m)

Explanation: This formula calculates the cross-sectional area of a well based on the discharge rate and the constant depression head specific to coarse sand conditions.

3. Importance of Cross-Sectional Area Calculation

Details: Accurate calculation of cross-sectional area is crucial for well design, determining specific capacity, and optimizing water extraction efficiency in coarse sand aquifers.

4. Using the Calculator

Tips: Enter discharge in m³/s and constant depression head in meters. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is Constant Depression Head for Coarse Sand?
A: It is the difference between the water table level and the water level in the well, specifically measured for coarse sand conditions.

Q2: Why is this formula specific to coarse sand?
A: Coarse sand has different hydraulic properties compared to other soil types, requiring specific constants for accurate calculations.

Q3: What are typical values for discharge in well systems?
A: Discharge values vary widely but typically range from 0.001 to 10 m³/s depending on well size and aquifer characteristics.

Q4: How does cross-sectional area affect well performance?
A: Larger cross-sectional areas generally allow for higher discharge rates and better well performance in coarse sand aquifers.

Q5: Can this formula be used for other soil types?
A: This specific formula is optimized for coarse sand conditions. Other soil types may require different constants or formulas.