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Deepwater Surf Similarity Parameter Formula:
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The Deepwater Surf Similarity Parameter compares the wave surface slope to the bed slope in the surf zone and represents important features of the hydrodynamics of the surf zone. It is a dimensionless parameter used in coastal engineering to characterize wave breaking and surf zone processes.
The calculator uses the formula:
Where:
Explanation: This formula relates the mean wave runup to the deepwater wave height through a power-law relationship, providing a similarity parameter that characterizes surf zone hydrodynamics.
Details: The Deepwater Surf Similarity Parameter is crucial for understanding wave breaking processes, predicting wave runup on beaches and coastal structures, and designing coastal protection measures. It helps engineers assess the interaction between waves and beach profiles.
Tips: Enter mean runup and deepwater wave height in meters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is the typical range of Deepwater Surf Similarity Parameter values?
A: The parameter typically ranges from 0.5 to 10, with lower values indicating more dissipative conditions and higher values indicating more reflective beach conditions.
Q2: How does this parameter relate to beach types?
A: Lower ε₀ values are associated with dissipative beaches (gentle slopes), while higher values indicate reflective beaches (steeper slopes).
Q3: Can this parameter be used for all wave conditions?
A: The formula is most accurate for regular wave conditions and may require adjustments for irregular waves or complex bathymetry.
Q4: What are the limitations of this calculation?
A: The calculation assumes idealized conditions and may not account for factors like wave direction, tidal variations, or complex seabed topography.
Q5: How is mean runup typically measured?
A: Mean runup is usually measured through field observations, wave tank experiments, or numerical modeling of wave propagation and shoreline interaction.