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Transport E (Elements)
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Transport E (Elements)
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* Data line E1 describes the sewer element data.
*============================================================================
* E1 line :
* NOE : Element number. May be up to 9 digits long (or
* 8-character alphanumeric name when using $ANUM).
* NUE(1) : First of three possible upstream elements (number or name).
* NUE(2) : Second of three possible upstream elements.
* NUE(3) : Third of three possible upstream elements.
* Note, when using alphanumeric names, use a blank in quotes ' ' to
* denote no upstream element (not a zero in quotes).
* NTYPE : = 1 Circular pipe. = 14 Parabolic.
* = 2 Rectangular. = 15 Power function.
* = 3 Egg-shaped. = 16 Irregular.
* = 4 Horseshoe. = 17 User supplied.
* = 5 Gothic. = 18 User supplied.
* = 6 Caternary. = 19 Manhole.
* = 7 Semi-elliptic. = 20 Lift station.
* = 8 Basket-handle. = 21 Flow divider.
* = 9 Semi-circular. = 22 Storage unit.
* = 10 Modified basket-handle. = 23 Flow divider.
* = 11 Rectangular, triangular bottom. = 24 Flow divider.
* = 12 Rectangular, round bottom. = 25 Backwater element.
* = 13 Trapezoidal. = 26 Tabular flow divid.
* = 27 Quality divider
*
* The user should consult Tables 6-3 and 6-4 for
* the meaning of the remaining conduit and non-conduit
* variables on data group E1.
* For the new (8/93) Type 26 Tabular Flow Divider, the only
* information required on the E1 line is the usual element
* number information and a value for GEOM3 = number of element
* that receives the undiverted flow. See explanation
* of data groups G6 and G7 below.
*
* IMPORTANT NOTE REGARDING TYPE 23 (WEIR) FLOW DIVIDER:
* W. Huber, Aug. 10, 2000
*
* Note that the units for ROUGH (weir constant x weir length) should be
* ft^1.5/sec [m^1.5/sec] for the weir exponent of 1.5 used in Transport.
* Formally,
*
* ROUGH = 2/3 x Ce x SQRT(2 g) x length
*
* where Ce = weir coefficient and g = gravitational acceleration.
*
* Metric units should be OK as of Aug. 10, 2000.
* The weir-type flow divider works exactly as indicated on pp, 256-257
* of the User's Manual, in which the depth over the weir is determined
* as a linear function of the flow > DIST. Weir flow is then calculated
* as a function of this depth. This causes the "undiverted flow" to be
* greater than the value of DIST. If this is OK, then use a Type 23 flow
* divider. IF NOT, YOU ARE URGED TO USE A TYPE 26 FLOW DIVIDER, in which
* the user supplies a rating curve for diversion of flow. For a Type 26
* flow divider, Transport does not perform any hydraulic calculations at the
* flow divider element and only uses the supplied rating curve.
*
*
* The brief summary listed below describes general
* conduit and manhole data.
*
* The Default/Ratio option can be used for variables indicated with
* an asterisk (*). See explanation for Runoff Block group G1.
*
* DIST* : Element length for conduit (ft) [m], or constant
* inflow (cfs) [cms] for a manhole. Note: a small (e.g., tenths
* of a cfs or hundredths of a cms), constant
* inflow at the upstream end of Transport networks usually
* avoids continuity error messages at the beginning of runs
* while Transport is trying to initally fill pipes with water
* from the inflow hydrographs.
* If a negative value is entered for DIST for a conduit, then
* conduit flow will be assumed to be super critical (SC) at
* every time step. This supesedes internal check for SC flow
* and essentially assumes normal flow at each time step.
* GEOM1* : First characteristic dimension of the conduit, ft [m].
* SLOPE* : Invert slope of the conduit (percent or ft/100 ft).
* ROUGH* : Manning's roughness of conduit.
* GEOM2* : Second characteristic dimension of the conduit, ft [m].
* BARREL : Number of barrels for this conduit, integer, such as 1.0.
* Cross section ID for natural channel cross section.
* A negative value will stop the printout of the parabolic,
* power function and natural channel dimensionless curves. But
* must be a negative integer, such as -1.0.
* GEOM3 : Third characteristic dimension of the conduit, ft [m].
* Equals exponent for power function channel (type 15), where
* width = coef*depth^GEOM3.
* KGEOM : Third characteristic dimension of the conduit if
* alphanumeric elements are used. Follows GEOM3 and is
* required only when using $ANUM option.
*
* Major Change!!
* For type 19 manhole elements, the concentrations for up to four water
* quality parameters being simulated were originally input on the GEOM1,
* SLOPE, ROUGH and GEOM2 parameters. These have now been moved to the
* E1b line.
* There is no-two character alphanumeric identifier for this line.
* Simply follow each type 19 line with a second line with the
* constant inflow concentrations for each of the NPOLL parameters being
* simulated. These concentrations should be entered only if constant
* inflow (DIST) is not zero.
*
* NEW QUALITY DIVIDER ELEMENT
* This new quality divider element type 27 allows the user to input
* the delivery ratio for each constituent being simulated. The input
* fraction of the mass or concentration is delivered to the
* downstream element while the remainder is removed from the system.
* Inputs required are NOE, NUE1, NUE2, NUE3, NTYPE with remaining
* parameters not used but entered as zero. This is followed by line
* similar to the E1b line. This line does not have a two character
* alphanumeric identifier, just NPOLL delivery ratios. Enter 1.0
* to deliver all mass to down stream element, 0.5 to deliver 50%
* of the mass.
*
*============================================================================
* NOE NUE(1) NUE(2) NUE(3) NTYPE DIST GEOM1 SLOPE ROUGH GEOM2 BARREL GEOM3 KGEOM
E1 3 0 0 0 19 10.0 0 0 0 0 0 0 ' '
1.0 2.0 3.0 4.0
E1 100 3 0 0 17 900.0 5.0 0.10 0.02 0 1 0 ' '
E1 200 100 0 0 19 0 0 0 0 0 0 0 ' '
E1 300 200 0 0 1 900.0 5.0 0.10 0.02 0 1 0 ' '
E1 400 300 0 0 19 0 0 0 0 0 0 0 ' '
E1 500 400 0 0 26 0 0 0 0 0 0 550. ' '
E1 550 500 0 0 19 0 0 0 0 0 0 0 ' '
E1 600 500 0 0 19 0 0 0 0 0 0 0 ' '
*============================================================================
* The E2 (NC), E3 (X1), and E4 (GR) data lines are for any type 16
* conduit. They follow as a group after all E1 lines have been entered.
* The sequence for channels must be in the same order as the earlier
* sequence of type-16 E1-lines.
*
* Data groups E2, E3 and E4 correspond to HEC-2 lines NC,
* X1 and GR. HEC-2 input may be used directly if desired. Lines
* may be identified either by Transport identifiers (E2, E3, E4) or
* HEC-2 identifiers (NC, X1, GR).
*============================================================================
* The E2 line is used to input natural channel roughness.
* This is an optional data line that permanently modifies the Manning's
* roughness coefficients (n) for the remaining natural channels. This
* data group may repeated for later channels. It must be included for
* the first natural channel modeled.
*============================================================================
* E2 or NC line :
* XNL : n for the left overbank.
* = 0.0 No change.
* > 0.0 New Manning's n.
* XNR : n for the right overbank.
* = 0.0 No change.
* > 0.0 New Manning's n.
* XNCH : n for the channel.
* = 0.0 No change.
* > 0.0 New Manning's n.
* Note: XNCH is used to develop the normalized
* flow routing curves.
*============================================================================
* E3 or X1 line : Cross Section Data. Required for each type 16
* conduit in earlier E1 data lines.
* SECNO : Cross section identification number.
* NUMST : Total number of stations on the following
* E4 (GR) data lines. NUMST must be < 99.
* STCHL : The station of the left bank of the channel,
* ft [m]. Must be equal to one of the STA numbers
* on the E4 (GR) data lines.
* STCHR : The station of the right bank of the channel,
* ft [m]. Must be equal to one of the STA
* on the E4 (GR) data lines.
* XLOBL : Not required for Transport (enter 0.0).
* XLOBR : Not required for Transport (enter 0.0).
* LEN : Length of channel reach represented
* by this cross section, ft [m].
* PXSECR : Factor to modify the horizontal dimensions
* for a cross section. The distances between
* adjacent E4 (GR) stations (STA) are multiplied by
* this factor to expand or narrow a cross section.
* The STA of the first E4 (GR) point remains the same.
* The factor can apply to a repeated cross section
* or a current one. A factor of 1.1 will increase
* the horizontal distance between the E4 (GR) stations
* by 10 percent. Enter 0.0 for no modification.
* PSXECE : Constant to be added (+ or -) to E4 (GR)
* elevation data on next E4 (GR) line. Enter
* 0.0 to use E4 (GR) values as entered.
*============================================================================
* E4 or GR line : Cross Section Profile. Required for each type 16 conduit.
* EL(1) : Elevation of cross section at STA(1). May be
* positive or negative, ft [m].
* STA(1) : Station of cross section 1, ft [m].
* EL(2) : Elevation of cross section at STA(2), ft [m].
* STA(2) : Station of cross section 2, ft [m].
*
* Enter NUMST elevations and stations to describe the cross section.
* Enter 5 pairs of elevations and stations per data line. (Include group
* identifier, E4 or GR, on each line.) Stations should be in increasing
* order progressing from left to right across the section. Cross section
* data are traditionally oriented looking downstream (HEC, 1982).
*============================================================================