Apparent Dispersion Coefficient which includes all Mixing Effects Calculator

✖Diffusion Coefficient at x=0 is a parameter that quantifies the rate at which a substance diffuses from one region to another.ⓘ Diffusion Coefficient at x=0 [D₀]			+10% -10%
✖Distance outside the Estuary refers to the spatial extent over which estuarine processes, such as sediment transport and water circulation, influence the surrounding marine environment.ⓘ Distance outside the Estuary [B]			+10% -10%
✖Coordinate along the Channel describes how properties like velocity, pressure, and temperature vary along the length of the channel.ⓘ Coordinate along the Channel [x]			+10% -10%

✖Apparent Dispersion Coefficient is a measure of the magnitude of diffusion which includes all Mixing Effects.ⓘ Apparent Dispersion Coefficient which includes all Mixing Effects [D]

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Apparent Dispersion Coefficient which includes all Mixing Effects

Formula

`"D" = ("D"_{"0"}*"B")/("x"+"B")`

Example

`"0.6"=("3.15"*"4m")/("17m"+"4m")`

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Apparent Dispersion Coefficient which includes all Mixing Effects Solution

STEP 0: Pre-Calculation Summary

Formula Used

Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary)
D = (D₀*B)/(x+B)
This formula uses 4 Variables

Variables Used

Apparent Dispersion Coefficient - Apparent Dispersion Coefficient is a measure of the magnitude of diffusion which includes all Mixing Effects.
Diffusion Coefficient at x=0 - Diffusion Coefficient at x=0 is a parameter that quantifies the rate at which a substance diffuses from one region to another.
Distance outside the Estuary - (Measured in Meter) - Distance outside the Estuary refers to the spatial extent over which estuarine processes, such as sediment transport and water circulation, influence the surrounding marine environment.
Coordinate along the Channel - (Measured in Meter) - Coordinate along the Channel describes how properties like velocity, pressure, and temperature vary along the length of the channel.

STEP 1: Convert Input(s) to Base Unit

Diffusion Coefficient at x=0: 3.15 --> No Conversion Required
Distance outside the Estuary: 4 Meter --> 4 Meter No Conversion Required
Coordinate along the Channel: 17 Meter --> 17 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D = (D₀*B)/(x+B) --> (3.15*4)/(17+4)

Evaluating ... ...

D = 0.6

STEP 3: Convert Result to Output's Unit

0.6 --> No Conversion Required

FINAL ANSWER

0.6 <-- Apparent Dispersion Coefficient

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Coastal and Ocean Engineering » Tides » Salinity Variations with Tide » Apparent Dispersion Coefficient which includes all Mixing Effects

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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NSS College of Engineering (NSSCE), Palakkad

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< 19 Salinity Variations with Tide Calculators

Salinity at Moment of Slack Water

Go Salinity at the Moment of Slack Water = Salinity of Water*exp(-(18*10^-6)*Fresh Water River Flow*Coordinate along the Channel^2-(0.045*Fresh Water River Flow^0.5))

Apparent Dispersion Coefficient which includes all Mixing Effects

Go Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary)

Coordinate along Channel given Apparent Dispersion Coefficient

Go Coordinate along the Channel = (Diffusion Coefficient at x=0*Distance outside the Estuary/Apparent Dispersion Coefficient)-Distance outside the Estuary

Diffusion Coefficient

Go Diffusion Coefficient at x=0 = Apparent Dispersion Coefficient*(Coordinate along the Channel+Distance outside the Estuary)/Distance outside the Estuary

Froude Number given Dimensionless Estuary number

Go Froude Number = sqrt((Estuary Number*Fresh Water River Flow*Tidal Period)/Volume of Tidal Prism)

Fresh Water River Flow given Dimensionless Estuary number

Go Fresh Water River Flow = (Volume of Tidal Prism*Froude Number^2)/(Estuary Number*Tidal Period)

Tide Period given Dimensionless Estuary number

Go Tidal Period = (Volume of Tidal Prism*Froude Number^2)/(Estuary Number*Fresh Water River Flow)

Dimensionless Estuary number

Go Estuary Number = (Volume of Tidal Prism*Froude Number^2)/(Fresh Water River Flow*Tidal Period)

Volume of tidal prism given dimensionless estuary number

Go Volume of Tidal Prism = (Estuary Number*Fresh Water River Flow*Tidal Period)/Froude Number^2

Fresh Water River Flow given Mixing Parameter

Go Fresh Water River Flow = (Mixing Parameter*Volume of Tidal Prism)/Tidal Period

Volume of tidal prism given mixing parameter

Go Volume of Tidal Prism = (Fresh Water River Flow*Tidal Period)/Mixing Parameter

Tidal Period given Mixing Parameter

Go Tidal Period = (Mixing Parameter*Volume of Tidal Prism)/Fresh Water River Flow

Mixing Parameter

Go Mixing Parameter = (Fresh Water River Flow*Tidal Period)/Volume of Tidal Prism

Froude Number based upon maximum flood current velocity at estuary mouth

Go Froude Number = sqrt(Estuary Number*Mixing Parameter)

Rate of Potential Energy Gain given Dimensionless Stratification Number

Go Rate of Potential Energy Gain = Rate of Energy Dissipation/Stratification Number

Rate of Energy Dissipation given Dimensionless Stratification Number

Go Rate of Energy Dissipation = Stratification Number*Rate of Potential Energy Gain

Dimensionless Stratification Number

Go Stratification Number = Rate of Energy Dissipation/Rate of Potential Energy Gain

Estuary Number given Froude Number and Mixing Parameter

Go Estuary Number = Froude Number^2/Mixing Parameter

Mixing Parameter given Dimensionless Estuary number

Go Mixing Parameter = Froude Number^2/Estuary Number

Apparent Dispersion Coefficient which includes all Mixing Effects Formula

Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary)
D = (D₀*B)/(x+B)

What is River Navigation?

When a stretch of river is made navigable, a lock is sometimes required to bypass an obstruction such as a rapid, dam, or mill weir – because of the change in river level across the obstacle.
In large scale river navigation improvements, weirs and locks are used together. A weir will increase the depth of a shallow stretch, and the required lock will either be built in a gap in the weir, or at the downstream end of an artificial cut which bypasses the weir and perhaps a shallow stretch of river below it. A river improved by these means is often called a Waterway or River Navigation.

How to Calculate Apparent Dispersion Coefficient which includes all Mixing Effects?

Apparent Dispersion Coefficient which includes all Mixing Effects calculator uses Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary) to calculate the Apparent Dispersion Coefficient, The Apparent Dispersion Coefficient which includes all Mixing Effects formula is defined as the influencing extreme situations of salinity distribution (maximum and minimum intrusion), occurring at moments of slack water. Apparent Dispersion Coefficient is denoted by D symbol.

How to calculate Apparent Dispersion Coefficient which includes all Mixing Effects using this online calculator? To use this online calculator for Apparent Dispersion Coefficient which includes all Mixing Effects, enter Diffusion Coefficient at x=0 (D₀), Distance outside the Estuary (B) & Coordinate along the Channel (x) and hit the calculate button. Here is how the Apparent Dispersion Coefficient which includes all Mixing Effects calculation can be explained with given input values -> 0.6 = (3.15*4)/(17+4).

FAQ

What is Apparent Dispersion Coefficient which includes all Mixing Effects?

The Apparent Dispersion Coefficient which includes all Mixing Effects formula is defined as the influencing extreme situations of salinity distribution (maximum and minimum intrusion), occurring at moments of slack water and is represented as D = (D₀*B)/(x+B) or Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary). Diffusion Coefficient at x=0 is a parameter that quantifies the rate at which a substance diffuses from one region to another, Distance outside the Estuary refers to the spatial extent over which estuarine processes, such as sediment transport and water circulation, influence the surrounding marine environment & Coordinate along the Channel describes how properties like velocity, pressure, and temperature vary along the length of the channel.

How to calculate Apparent Dispersion Coefficient which includes all Mixing Effects?

The Apparent Dispersion Coefficient which includes all Mixing Effects formula is defined as the influencing extreme situations of salinity distribution (maximum and minimum intrusion), occurring at moments of slack water is calculated using Apparent Dispersion Coefficient = (Diffusion Coefficient at x=0*Distance outside the Estuary)/(Coordinate along the Channel+Distance outside the Estuary). To calculate Apparent Dispersion Coefficient which includes all Mixing Effects, you need Diffusion Coefficient at x=0 (D₀), Distance outside the Estuary (B) & Coordinate along the Channel (x). With our tool, you need to enter the respective value for Diffusion Coefficient at x=0, Distance outside the Estuary & Coordinate along the Channel and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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