Quick Answer
The low-crest breakwater wave transmission coefficient (k_t) model calculator computes wave transmission coefficient from the input values you provide.
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Find Engineering Solutions →Result Interpretation
Low-Crest Breakwater Wave Transmission Coefficient (K_t) Model calculator computes Wave transmission coefficient in dimensionless using the defined engineering formula and the input values provided. Wave transmission coefficient is expressed in dimensionless. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Relative crest freeboard = 0.5
- Significant wave height = 2
- Breakwater crest width = 8
- Permeability parameter = 0.3
- Water depth at structure toe = 5
- Crest slope tangent = 0.1
Expected Result:
- Wave transmission coefficient = 0.0011572308426584
Engineering Interpretation:
Under the given input conditions, the calculated result is: Wave transmission coefficient = 0.0011572308426584 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
wave transmission coefficient = pow(10.0, -1.35 * relative crest freeboard / significant wave height - 0.65 * breakwater crest width / significant wave height + 0.007 * permeability parameter * significant wave height / water depth at structure toe + 0.002 * crest slope tangent * significant wave height / water depth at structure toe)Wave transmission coefficient.
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| R_c | Relative crest freeboard | INPUT | Relative crest freeboard |
| H_s | Significant wave height | INPUT | Significant wave height |
| B | Breakwater crest width | INPUT | Breakwater crest width |
| P | Permeability parameter | INPUT | Permeability parameter |
| h | Water depth at structure toe | INPUT | Water depth at structure toe |
| tan_alpha | Crest slope tangent | INPUT | Crest slope tangent |
| K_t | Wave transmission coefficient | OUTPUT | Wave transmission coefficient |
Calculation Steps
- Enter the relative crest freeboard in m.
- Enter the significant wave height in m.
- Enter the breakwater crest width in m.
- Enter the permeability parameter in dimensionless.
- Enter the water depth at structure toe in m.
- Enter the crest slope tangent in dimensionless.
- Step 1: Compute wave transmission coefficient.
- Read the wave transmission coefficient (dimensionless) from the results.
Frequently Asked Questions
What does this calculator calculate?
The Low-Crest Breakwater Wave Transmission Coefficient (K_t) Model calculator estimates Wave transmission coefficient based on the input parameters you provide
Why is relative crest freeboard important in this calculation?
relative crest freeboard is used directly in the calculation of wave transmission coefficient. Its effect on the result depends on the complete formula and the values of the other inputs.. When you enter relative crest freeboard in m, the calculator uses it in the engineering formula to compute the output
How should I interpret the result wave transmission coefficient?
The calculator outputs wave transmission coefficient in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Relative crest freeboard (m), Significant wave height (m), Breakwater crest width (m), Permeability parameter (dimensionless), Water depth at structure toe (m), Crest slope tangent (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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