Tidal Period When Tidal Prism Accounting For Non-sinusoidal Prototype Flow By Keulegan Calculator

Formula Used:

\[ T = \frac{P \times \pi \times C}{V_m \times A_{avg}} \]

Tidal Prism Filling Bay (P):

m³

Keulegan Constant for Non-sinusoidal Character (C):

Maximum Cross Sectional Average Velocity (Vm):

m/s

Average Area over the Channel Length (Aavg):

m²

Tidal Duration (T):

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1. What is Tidal Duration Calculation?

Tidal duration is an efficient way of guesstimating how much water there is, at any given time of day, over a particular point. It calculates the time period of tidal cycles based on various hydraulic parameters.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T = \frac{P \times \pi \times C}{V_m \times A_{avg}} \]

Where:

\( T \) — Tidal Duration (Year)
\( P \) — Tidal Prism Filling Bay (m³)
\( C \) — Keulegan Constant for Non-sinusoidal Character
\( V_m \) — Maximum Cross Sectional Average Velocity (m/s)
\( A_{avg} \) — Average Area over the Channel Length (m²)

Explanation: This formula accounts for non-sinusoidal characteristics of tidal flow using Keulegan's constant, providing a more accurate estimation of tidal duration.

3. Importance of Tidal Duration Calculation

Details: Accurate tidal duration calculation is crucial for coastal engineering, navigation planning, environmental impact assessments, and understanding sediment transport patterns in estuaries and coastal areas.

4. Using the Calculator

Tips: Enter all required parameters with appropriate units. Ensure all values are positive and within reasonable physical ranges for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is tidal prism filling bay?
A: Tidal Prism Filling Bay is the volume of water in an estuary or inlet between mean high tide and mean low tide, or the volume of water leaving an estuary at ebb tide.

Q2: What does Keulegan Constant represent?
A: Keulegan Constant for Non-sinusoidal Character quantifies drag force on structures exposed to irregular water flow, aiding design considerations for coastal structures.

Q3: How is maximum cross sectional average velocity measured?
A: This is the maximum cross sectional average velocity during a tidal cycle which is the periodic rise and fall of the waters of the ocean and its inlets.

Q4: What factors affect tidal duration calculations?
A: Bathymetry, channel geometry, tidal range, and non-sinusoidal flow characteristics all influence tidal duration calculations.

Q5: Are there limitations to this calculation method?
A: This method assumes certain simplifications and may need adjustments for highly irregular geometries or extreme tidal conditions.