Reflection Coefficient in Coastal Structures Calculator

✖Coefficient 'a' depend primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular.ⓘ Coefficient 'a' [a]			+10% -10%
✖Surf Similarity Number or Iribarren Number is used to model several effects of (breaking) surface gravity waves.ⓘ Surf Similarity Number or Iribarren Number [I_r]			+10% -10%
✖Coefficient 'b' depending primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular.ⓘ Coefficient 'b' [b]			+10% -10%

✖Reflection Coefficient is a parameter that describes how much of a wave is reflected by an impedance discontinuity in the transmission medium.ⓘ Reflection Coefficient in Coastal Structures [r]

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Formula

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Reflection Coefficient in Coastal Structures

Formula

`"r" = ("a"*"I"_{"r"}^2)/"b"+"I"_{"r"}^2`

Example

`"0.010994"=("1.2"*("0.095")^2)/"5.5"+("0.095")^2`

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Reflection Coefficient in Coastal Structures Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2
r = (a*I_r^2)/b+I_r^2
This formula uses 4 Variables

Variables Used

Reflection Coefficient - Reflection Coefficient is a parameter that describes how much of a wave is reflected by an impedance discontinuity in the transmission medium.
Coefficient 'a' - Coefficient 'a' depend primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular.
Surf Similarity Number or Iribarren Number - Surf Similarity Number or Iribarren Number is used to model several effects of (breaking) surface gravity waves.
Coefficient 'b' - Coefficient 'b' depending primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular.

STEP 1: Convert Input(s) to Base Unit

Coefficient 'a': 1.2 --> No Conversion Required
Surf Similarity Number or Iribarren Number: 0.095 --> No Conversion Required
Coefficient 'b': 5.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

r = (a*I_r^2)/b+I_r^2 --> (1.2*0.095^2)/5.5+0.095^2

Evaluating ... ...

r = 0.0109940909090909

STEP 3: Convert Result to Output's Unit

0.0109940909090909 --> No Conversion Required

FINAL ANSWER

0.0109940909090909 ≈ 0.010994 <-- Reflection Coefficient

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Coastal and Ocean Engineering » Surf Zone Hydrodynamics » Harbor Hydrodynamics » Reflection from Structures » Reflection Coefficient in Coastal Structures

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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National Institute of Technology (NIT), Warangal

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< 6 Reflection from Structures Calculators

Reflection Coefficient in Coastal Structures

Go Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2

Reflection Coefficient in Coastal Structures with Tetrapod-armored Breakwaters - Irregular Waves

Go Reflection Coefficient = 0.48*Surf Similarity Number or Iribarren Number^2/(9.6+Surf Similarity Number or Iribarren Number^2)

Reflection Coefficient in Coastal Structures with Dolos-Armored Breakwaters - Monochromatic Waves

Go Reflection Coefficient = 0.56*Surf Similarity Number or Iribarren Number^2/(10+Surf Similarity Number or Iribarren Number^2)

Reflection Coefficient in Coastal Structures with Plane Slope-Irregular Waves

Go Reflection Coefficient = 1.1*Surf Similarity Number or Iribarren Number^2/(5.7+Surf Similarity Number or Iribarren Number^2)

Reflection Coefficient in Coastal Structures with Rubble-mound Breakwaters

Go Reflection Coefficient = 0.6*Surf Similarity Number or Iribarren Number^2/(6.6+Surf Similarity Number or Iribarren Number^2)

Reflection Coefficient in Coastal Structures with Plane Slope-Monochromatic Waves

Go Reflection Coefficient = Surf Similarity Number or Iribarren Number^2/(5.5+Surf Similarity Number or Iribarren Number^2)

Reflection Coefficient in Coastal Structures Formula

Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2
r = (a*I_r^2)/b+I_r^2

What is Wave Reflection on Structures?

If there is a change in water depth as a wave propagates forward, a portion of the wave’s energy will be reflected. When a wave hits a vertical, impermeable, rigid surface-piercing wall, essentially all of the wave energy will reflect from the wall. On the other hand, when a wave propagates over a small bottom slope, only a very small portion of the energy will be reflected. The degree of wave reflection is defined by the reflection coefficient Cr = Hr/Hi where Hr and Hi are the reflected and incident wave heights, respectively.

How to Calculate Reflection Coefficient in Coastal Structures?

Reflection Coefficient in Coastal Structures calculator uses Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2 to calculate the Reflection Coefficient, The Reflection Coefficient in Coastal Structures of the interior boundaries of many harbors are lined with structures such as bulkheads or reveted slopes. Recent laboratory investigations (Seelig and Ahrens 1981; Seelig 1983; Allsop and Hettiarachchi 1988) indicate that the reflection coefficients for most structure forms as the above equation. Reflection Coefficient is denoted by r symbol.

How to calculate Reflection Coefficient in Coastal Structures using this online calculator? To use this online calculator for Reflection Coefficient in Coastal Structures, enter Coefficient 'a' (a), Surf Similarity Number or Iribarren Number (I_r) & Coefficient 'b' (b) and hit the calculate button. Here is how the Reflection Coefficient in Coastal Structures calculation can be explained with given input values -> 0.010994 = (1.2*0.095^2)/5.5+0.095^2.

FAQ

What is Reflection Coefficient in Coastal Structures?

The Reflection Coefficient in Coastal Structures of the interior boundaries of many harbors are lined with structures such as bulkheads or reveted slopes. Recent laboratory investigations (Seelig and Ahrens 1981; Seelig 1983; Allsop and Hettiarachchi 1988) indicate that the reflection coefficients for most structure forms as the above equation and is represented as r = (a*I_r^2)/b+I_r^2 or Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2. Coefficient 'a' depend primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular, Surf Similarity Number or Iribarren Number is used to model several effects of (breaking) surface gravity waves & Coefficient 'b' depending primarily on the structure geometry and to a smaller extent on whether waves are monochromatic or irregular.

How to calculate Reflection Coefficient in Coastal Structures?

The Reflection Coefficient in Coastal Structures of the interior boundaries of many harbors are lined with structures such as bulkheads or reveted slopes. Recent laboratory investigations (Seelig and Ahrens 1981; Seelig 1983; Allsop and Hettiarachchi 1988) indicate that the reflection coefficients for most structure forms as the above equation is calculated using Reflection Coefficient = (Coefficient 'a'*Surf Similarity Number or Iribarren Number^2)/Coefficient 'b'+Surf Similarity Number or Iribarren Number^2. To calculate Reflection Coefficient in Coastal Structures, you need Coefficient 'a' (a), Surf Similarity Number or Iribarren Number (I_r) & Coefficient 'b' (b). With our tool, you need to enter the respective value for Coefficient 'a', Surf Similarity Number or Iribarren Number & Coefficient 'b' and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Reflection Coefficient?

In this formula, Reflection Coefficient uses Coefficient 'a', Surf Similarity Number or Iribarren Number & Coefficient 'b'. We can use 5 other way(s) to calculate the same, which is/are as follows -

Reflection Coefficient = Surf Similarity Number or Iribarren Number^2/(5.5+Surf Similarity Number or Iribarren Number^2)
Reflection Coefficient = 1.1*Surf Similarity Number or Iribarren Number^2/(5.7+Surf Similarity Number or Iribarren Number^2)
Reflection Coefficient = 0.6*Surf Similarity Number or Iribarren Number^2/(6.6+Surf Similarity Number or Iribarren Number^2)
Reflection Coefficient = 0.56*Surf Similarity Number or Iribarren Number^2/(10+Surf Similarity Number or Iribarren Number^2)
Reflection Coefficient = 0.48*Surf Similarity Number or Iribarren Number^2/(9.6+Surf Similarity Number or Iribarren Number^2)

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