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    Introduction to the WASP

    Interface

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    Watershed & Water Quality Modeling Technical Support Center

    Introduction to WASP Interface

    Input FileControl RunSimulation Input DataSpecificationImportNetwork OutputControl

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    Create New WASP Input File

    1. Creates a blank WASP Input File (wif).

    2. Save button will be activated. Press

    save and specify name and directory for the

    new input file (e.g., CSTR Test.wif).

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    Open Existing WASP Input File

    Browse and

    select an existingWasp Input File

    WASP provides a

    listing of *.wif in

    the currentdirectory.

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    WASP Input Data Categories

    1. Simulation Control

    2. Time Step

    3. Print Interval

    4. Segment Properties5. System Properties

    6. Parameter Switches

    7. Constants

    8. Loadings

    9. Kinetic Time Functions

    10.Dispersive Exchanges11.Advective Flows

    12.Boundary Concentrations

    1 2 3 4 5 6 7 8 9 10 11 12

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    Simulation Control

    Description andComments

    Model Type

    Simulation Start Date &Time

    Non Point SourceLinkage

    Hydrodynamic Optionand Linkage

    Restart Option

    Bed Volume Option

    Time Step Option

    Negative SolutionOption

    Press iOK and save

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    Time Step

    Sets duration of simulation

    Specifies calculational timesteps, in days

    Steps:

    Press +Insert twice Highlight and edit Date and

    Time in row 2

    Highlight and edit time stepValue in rows 1 and 2

    Note: if desired, additional timesteps can be specified by

    pressing +Insertand editingthe additional rows

    Press iOK and save

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    Print Interval

    Specifies output print

    intervals, in days

    Steps: Highlight and edit print interval

    Value in rows 1 and 2

    Note: if desired, additional print

    intervals can be specified by

    pressing +Insertand editingthe additional rows

    Press iOK and save

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    Segment Properties - Geometry

    Steps to specify simple network geometry:

    Press +Insert to create segment rows Highlight and edit Description, Volume, and Depth Multiplier for rows

    Select Segment Type

    Press iOK and save

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    Segment Properties - Parameters

    Steps to specify parameters:

    Press Parameters to enter screen

    Highlight and edit parameter values for rows

    Press iOK and save

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    Segment Properties

    Initial Concentrations

    Steps to specify initial concentrations:

    Press Initial Concentrations to enter screen

    Highlight and edit concentration values in segment rows

    Press i

    OK and save

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    Segment Properties

    Fraction Dissolved

    Steps to specify dissolved fractions: Press Fraction Dissolved to enter screen

    Highlight and set solids dissolved fractions to 0

    Toxicant dissolved fractions do not need to be reset from the default of 1;

    they are recalculated by the model throughout the simulation

    Press iOK and save

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    Systems

    Steps to specify system properties: Use pick list to simulate or bypass state variables and reset particulatetransport fields for sand and organic solids

    Highlight and set solids particle densities (g/mL) and maximumconcentrations; toxicant values do not need to be reset from default

    Edit boundary and loading scale factors as desired (default is 1.0)

    Press iOK and save

    W h d & W Q li M d li T h i l S C

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    ParametersSwitch

    Steps to enable parameters: Point and click on Used field to select or de-select parameters

    (parameter values are specified under Segments, but will not be usedunless selected here)

    Edit parameter scale factors as desired (default is 1.0)

    Press iOK and save

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    Constants

    Steps to specifyconstants: Use pick list to

    select ConstantGroup

    Point and click onUsed field toselect or de-

    select constants Highlight and set

    values forconstants

    Press iOK and

    save

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    Direct Loads

    Steps to specify loads: Highlight and right click on

    variable

    Select Add/Remove Loads

    In new dialogue box, pointand click on boxes to select

    segments receiving loads

    (not shown in diagram)

    Press iOK at bottom of

    dialogue box

    Continue adding loading

    segments to varables

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    Direct Loads, continued

    Steps to specify loads: Click on + by variable to

    unpack loading segments

    Highlight segment

    In bottom window, fill inloading values (kg/day) for

    beginning and ending times

    As needed, add time rows

    by pressing +Insert and

    edit Date, Time, and Value Continue entering loading

    data for all variables and

    segments

    Press iOK and save

    Note: variables withconcentrations in mg/L have

    loading values in kg/day

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    Kinetic Time Functions

    Steps to specify timefunctions:

    Point and click on Used field to

    select or de-select time functions

    Highlight Time Function In bottom window, fill in time

    function values for beginning and

    ending times

    As needed, add time rows by

    pressing +Insert and edit Date,Time, and Value

    Continue selecting time functions

    and entering data

    Press iOK and save

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    Dispersive Exchanges

    Bulkdispersive

    exchange

    flows among

    modelsegments

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    Dispersive ExchangesStep 1. set

    exchange function Point and click on

    Used field toselect or de-selectexchange fields

    Highlight PoreWater exchangefield

    Click in upperright window, thenpress +Insert

    Beginning andending dates willappear in thelower right window

    Exchange functionname can beedited

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    Dispersive Exchanges

    - continued Step 2. specifyexchange pairs

    Click in lower leftwindow, then press

    +Insert for eachexchange pathway

    For each row in theexchangepathway, highlightand select Fromand To segments,and specify

    exchange area(m2) and mixinglength (m)

    Press iOK and

    save

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    Dispersive Exchanges continuedStep 3. define time

    function In the lower right

    window, specifydispersion coefficientsfor the beginning andending dates

    Flows are in m2/sec;to use different units(here cm2/sec),specify appropriateConversion Factor inupper left window(e.g., m2/cm2)

    For additional entriesin the flow timefunction, press +Insert and edit Date,Time, and Value

    Press iOK and save

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    Advective Flows

    Step 1. set flowfunction

    Point and click on Used

    field to select or de-

    select flow fields Highlight Surface Water

    flow field

    Click in upper right

    window, then press +

    Insert Beginning and ending

    dates will appear in the

    lower right window

    Flow function name can

    be edited

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    Advective Flows - continued

    Step 2. define flowpath

    Click in lower left

    window, then press +

    Insert for each entry inthe flow pathway

    For each row in the flow

    pathway, highlight and

    select From and To

    segments, and specifyflow fraction value

    (default = 1.0)

    Press iOK and save

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    Advective Flows - continued

    Step 3. define timefunction

    In the lower rightwindow, specify flowvalues for the beginning

    and ending dates Flows are in m3/sec; to

    use different units (herem3/day), specifyappropriate ConversionFactor in upper leftwindow (e.g., day/sec)

    For additional entries inthe flow time function,

    press +Insert and editDate, Time, and Value

    Press iOK and save

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    Steps to specify boundaryconcentrations (BCs): Click on + by each variable to

    unpack boundary segments

    Highlight segment

    In bottom window, fill inconcentration values (mg/L) forbeginning and ending times

    As needed, add time rows by

    pressing +Insert and edit

    Date, Time, and Value Continue entering BC data for

    all variables and boundarysegments

    Press iOK and save

    Boundaries

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    WASP Output Variable Selection

    Point and click on

    Output field to

    select or de-select

    variables for

    WASP

    postprocessor.

    Point and click on

    CSV field to

    select or de-select

    variables for

    external CSVfiles. A separate

    csv file will be

    created for each

    variable.

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    Execute Model Simulation -1

    Press WASP execute button tobegin simulation.

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    Execute Model Simulation - 2

    A table of calculated concentrations will be

    displayed throughout the simulation. Status and error messages will be displayed.

    Progress through the simulation is

    summarized along the bottom bar. A control

    slide can be used to speed up, slow down, or

    freeze the simulation. The simulation can be aborted by pressing

    the stop button (circled above).

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    Q y g pp

    Execute Model Simulation - 3

    When the result file is closed, simulatedresults can be viewed by launching the

    WASP postprocessor, or by opening the

    variable csv files that were created.

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    WASP Output csv file

    Time,

    daysOutput variable by segment in columns

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    WASP PostprocessorSelect Output File

    Press File Open

    for list of WASP

    output files

    (*.BMD)

    Highlight and

    select output file

    Press Open

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    Q y g pp

    1. Press X-Y Plotbutton

    2. Press Add Curve

    button

    3. Highlight and select

    variable and segment

    and press OK button

    4. Repeat 2 and 3 for

    additional variables &segments on graph

    5. Press OK button to

    view graph

    WASP PostprocessorSelect Variable and Segment to Plot

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    y g pp

    WASP PostprocessorExample Graph

    Press Add

    Curve button

    to createmore graphs

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    WASP PostprocessorExample Table

    Press

    Tabular

    Results

    button to

    display table

    of results