1. What is Discharge over Ogee Spillway?

Discharge over Ogee Spillway is the fluid flowing per second through a channel or section of a pipe. It represents the volumetric flow rate of water over an ogee-shaped spillway structure.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Discharge over Ogee Spillway (m³/s)
• \( C_s \) — Coefficient of spillway (dimensionless)
• \( L_{Spillways} \) — Spillways length (m)
• \( H_{Water} \) — Head of water (m)

Explanation: The formula calculates the discharge based on the spillway coefficient, length of the spillway, and the head of water above the spillway crest.

3. Importance of Discharge Calculation

Details: Accurate discharge calculation is crucial for spillway design, flood control management, dam safety assessment, and hydraulic structure planning.

4. Using the Calculator

Tips: Enter the coefficient of spillway (typically between 0.6-0.8 for ogee spillways), spillway length in meters, and head of water in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for coefficient of spillway?
A: For ogee spillways, the coefficient typically ranges from 0.6 to 0.8, depending on the specific design and head conditions.

Q2: How does head of water affect the discharge?
A: Discharge increases with the 3/2 power of the head of water, meaning small increases in head result in significant increases in discharge.

Q3: What factors influence the coefficient of spillway?
A: The coefficient depends on the spillway shape, approach conditions, crest profile, and the ratio of actual head to design head.

Q4: When is this formula most accurate?
A: The formula provides good accuracy for well-designed ogee spillways operating near their design head conditions.

Q5: Are there limitations to this equation?
A: The formula may be less accurate for very low heads, submerged conditions, or non-standard spillway configurations.