1. What is Specific Capacity?

Specific Capacity is referred as amount of water furnished under a standard unit head. It represents the well's productivity and efficiency in delivering water under specific conditions.

2. How Does the Calculator Work?

The calculator uses the Specific Capacity formula:

Where:

• \( K_s \) — Specific Capacity (m/s)
• \( Q_f \) — Flow Discharge (m³/s)
• \( A \) — Area of the Well (m²)
• \( H \) — Depression Head (m)

Explanation: The formula calculates the specific capacity by dividing the flow discharge by the product of well area and depression head.

3. Importance of Specific Capacity Calculation

Details: Specific capacity is crucial for evaluating well performance, determining well efficiency, and designing appropriate pumping systems for water extraction.

4. Using the Calculator

Tips: Enter flow discharge in m³/s, well area in m², and depression head in meters. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the significance of specific capacity in well design?
A: Specific capacity helps determine the well's efficiency and productivity, which is essential for proper well design and pump selection.

Q2: How does depression head affect specific capacity?
A: Higher depression head typically results in lower specific capacity, indicating reduced well efficiency under increased drawdown conditions.

Q3: What are typical specific capacity values for different well types?
A: Specific capacity values vary widely depending on aquifer characteristics, but higher values generally indicate more productive wells.

Q4: Can specific capacity change over time?
A: Yes, specific capacity can decrease over time due to well clogging, screen incrustation, or changes in aquifer properties.

Q5: How is specific capacity used in groundwater management?
A: Specific capacity data helps in well field management, determining sustainable yield, and planning well maintenance schedules.