SMS:ADH Transport Constituents

This window is part of the ADH model control dialog (ADH|Model Control... command). It is accessed from the Model Control window by clicking on the Transport Constituents tab.

ADH transport constituents consist of two types: regular and sediment. Transport is only available for a normal (dynamic) simulation (specified on the Time tab of Model Control).

Constituents

Transport Constituents

• General – CN CON
• Salinity – CN SAL
• Temperature – CN TMP
• Vorticity – CN VOR

Sediment Transport Constituents

• Sand or gravel – CN SND
• Clay or silt – CN CLA

Non-sediment Transport Constituents

• Salinity – CN SAL (This is a currently unavailable option)
• Temperature – CN TMP (This is a currently unavailable option)
• Vorticity – CN VOR

Dialog Description

Sediment

List box contains type and name of sediments to be included in the model simulation.

New button inserts a defaulted general sediment into the sediment list.

Delete button removes the currently selected sediment from the list.

Spreadsheet contains the parameters and values specific to the currently selected sediment in the list. Available parameters will be updated when the sediment type is changed. The sediment list box will update when the sediment name or type change.

Bendway Correction

Include vorticity check box and the associated Normalization factor, As coefficient, and Ds coefficient positive real number edit fields correlates to the CN VOR card.

Generic and Sediment

List box contains type and name of user-defined constituents to be included in the model simulation.

New button inserts a defaulted generic constituent into the user-defined constituent list.

Delete button removes the currently selected constituent from the list.

Spreadsheet contains the parameters and values specific to the currently selected constituent in the list. Constituent parameters are:

• Constituent type – Options are: Generic, Sand or gravel sediment, and Clay or silt sediment
• Name – Within SMS, the constituent will be referenced by this name. Names must be unique.
• Characteristic concentration – The characteristic concentration of the constituent is measured in micromass per unit mass or parts per million.
• Grain diameter (sand/gravel and clay/silt types) – Measured in millimeters (this is converted to meters for ADH).
• Specific gravity (sand/gravel and clay/silt types) – Value must be greater than or equal to 1.0.
• Grain porosity (sand/gravel type only)
• Bulk density (clay/silt type only) – Measured in kilograms per cubic meters.
• Erosion critical shear (clay/silt type only) – Critical shear stress for erosion is used in the erosion flux equation. Measured in Newtons per square meters.
• Erosion rate constant (clay/silt type only) – Used in the erosion flux equation.
• Deposition critical shear (clay/silt type only) – Critical shear stress for deposition is measured in Newtons per square meters.
• Settling velocity (clay/silt type only) – Measured in meters per second.

The constituent list box will update when the constituent name or type changes. If the type of a constituent is changed, the name and characteristic concentration are retained, but all other values are cleared. All value fields are restricted to positive non-zero real numbers unless stated otherwise.

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