Solute Fluxes

Graphs showing distributions versus time of actual and cumulative solute fluxes across boundaries having different types of boundary conditions. Values of actual, cumulative, and reaction solute fluxes are positive when solute is removed from the system.

Available choices for the independent variable:

• Cumulative zero-order reactions
• Cumulative first-order reactions
• Cumulative root solute uptake
• Cumulative non-equilibrium mass transfer
• Cumulative constant boundary solute flux (both constant head and constant flux boundaries)
• Cumulative seepage face solute flux
• Cumulative variable boundary solute flux (both variable head and variable flux boundaries)
• Cumulative atmospheric boundary solute flux
• Cumulative drain boundary solute flux
• Cumulative free/deep drainage solute flux
• Constant boundary solute flux (both constant head and constant flux boundaries)
• Seepage face solute flux
• Variable boundary solute flux (both variable head and variable flux boundaries)
• Atmospheric boundary solute flux
• Drain boundary solute flux
• Free/deep drainage solute flux

Use the list box to select the independent variable to be displayed.

Information displayed in this graph is read from the SOLUTEx.OUT output file. This output file is a Text File, and as such it can be opened with any text editor (e.g., Notepad) or a spreadsheet software (e.g., Microsoft Excel). Numbers in the output file are separated by spaces (i.e., not by commas or Tabs) and therefore it may be necessary to organize them into columns using some Excel commands, such as "Data->Text to Columns", "Original Data Type: Delimited", and "Delimiters: Spaces". The output files are located, similarly as all input files, in the Working Directory. The exact location of the project folder can be found in the Project Manager.

The C-Ride Module:

Similarly, solute fluxes across boundaries and mass transfers between different phases are displayed for all three components. In addition to actual and cumulative boundary fluxes, of special interest is "Cumulative Non-Equil. Mass Transfer", which provides information about the mass transfer between the mobile and immobile colloids (for the first component - colloids), about the solute mass transfer associated with the mass transfer of mobile and immobile colloids (for the second component - solute on colloids), and about kinetically sorbed solute (for the third component - solute).

For the second component (i.e., solute on colloids), "Cumulative Zero-Order Reaction" and "Cumulative First-Order Reaction" give solute mass adsorbed and desorbed to/from colloids, respectively.

Finally, for the third component (i.e., solute), "Cumulative Zero-Order Reaction" and "Cumulative First-Order Reaction" give solute mass desorbed and adsorbed from/to colloids, respectively. "Cumulative First-Order Reaction" additionally also includes any first-order degradation, if considered.

For units used see Units in HYDRUS.

See the X-Y Graph  topic for more information on this graph.

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