CALPUFF and Postprocessors
CALPUFF and Postprocessors CALPUFF and Postprocessors
Table F-3 (Continued) CALPUFF Control File Inputs - Input Group 13 Point Source Parameters Variable Type Description Default Value (Optional Variables for Input Group 13b) SIGYZI(1) real Initial sigma-y (m) associated with the release from this source SIGYZI(2) real Initial sigma-z (m) associated with the release from this source FMFAC real Vertical momentum flux factor (0. or 1.0) used to represent the effect of rain-caps or other physical configurations that reduce momentum rise associated with the actual exit velocity. FMFAC=1 is full momentum (no obstruction). ZPLTFM real Platform height (m) for sources influenced by an isolated structure that has a significant open area between the surface and the bulk of the structure, such as an offshore oil platform. 0.0 - 0.0 1.0 0.0 The variables in Input Group 13b are entered for each of the "NPT1" point sources. The data for each source is treated as a separate input subgroup, and therefore, must end with an input group terminator (i.e., !END!). Note that the source number is an optional user comment which is outside of the delimiter containing the required source data. The data for each source must follow an opening delimiter and "X=". The data for each source is followed by a closing delimiter and an input group terminator. The first two optional variables may be provided for point sources that have a characteristic distribution much like volume sources. The values are entered in order between delimiters, following “SIGYZI=”. The third optional variable is typically used for sources with rain-hats that eliminate the initial vertical momentum of the release. The fourth is for downwash calculations for a structure rests above the surface. These records must be placed before the input group terminates (i.e., !END!) for the point source. The format of Input Group 13b for a simulation with eight species is shown below. --------------- Subgroup (13b) --------------- a POINT SOURCE: CONSTANT DATA ----------------------------- b c Source X UTM Y UTM Stack Base Stack Exit Exit Bldg. Emission No. Coordinate Coordinate Height Elevation Diameter Vel. Temp. Dwash Rates (km) (km) (m) (m) (m) (m/s) (deg. K) ------ ---------- ---------- ------ ------ -------- ----- -------- ----- -------- 1 ! SRCNAM = BLR1 ! 1 ! X = 0.1, -3., 40., 25., 2.2, 10., 450., 1., 1.7E00, 1.0E00, 1.0E-02, 1.0E-01, 2.0E-01, 2.4E-01, 2.5E-01, 2.0E-01 ! 1 ! SIGYZI = 3., 1.5 ! 1 ! FMFAC = 1. ! 1 ! ZPLTFM = 0. ! !END! -------- MAR 2006 – CALPUFF F-71
Table F-3 (Continued) CALPUFF Control File Inputs - Input Group 13 Point Source Parameters Variable Type Description Default Value (Input Group 13c - Building Dimension Data) SRCNAM character*12 Source name, used to coordinate inputs in Subgroups b,c,d HEIGHT real array Array of 36-direction-specific building heights (m) for flow vectors from 10E-360E in 10E increments WIDTH real array Array of 36 direction-specific building widths (m) for flow vectors from 10E-360E in 10E increments LENGTH* real array Array of 36 direction-specific building lengths (m) for flow vectors from 10E-360E in 10E increments XBADJ* real array Array of 36 direction-specific along-flow offset lengths (m) from the source to the center of the upwind face of the building for flow vectors from 10E-360E in 10E increments YBADJ* real array Array of 36 direction-specific cross-flow offset lengths (m) from the source to the center of the upwind face of the building for flow vectors from 10E-360E in 10E increments - - - - - - * LENGTH, XBADJ, and YBADJ are required only for the PRIME downwash option (MBDW=2) The variables in Input Group 13c are entered for each point source for which IDOWN=1 in Input Group 13b. The data for each point source (i.e., source name, 36 widths and 36 heights, 36 lengths, 36 xbadjusts, and 36 yb-adjusts) is treated as a separate input subgroup and therefore must end with an input group terminator (i.e., !END!). Once again, the source number is an optional user comment which is outside of the delimiters. The source name is used to place the building information with the correct source. The data for each source must follow an opening delimiter and either "WIDTH=" or "HEIGHT=". The data for each source is followed by a closing delimiter and an input group terminator (i.e., !END!). MAR 2006 – CALPUFF F-72
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- Page 94 and 95: c --- c --- c --- c --- c --- c ---
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Table F-3 (Continued)<br />
<strong>CALPUFF</strong> Control File Inputs - Input Group 13<br />
Point Source Parameters<br />
Variable Type Description Default Value<br />
(Optional Variables for Input Group 13b)<br />
SIGYZI(1) real Initial sigma-y (m) associated with the release from this<br />
source<br />
SIGYZI(2) real Initial sigma-z (m) associated with the release from this<br />
source<br />
FMFAC real Vertical momentum flux factor (0. or 1.0) used to represent<br />
the effect of rain-caps or other physical configurations that<br />
reduce momentum rise associated with the actual exit<br />
velocity. FMFAC=1 is full momentum (no obstruction).<br />
ZPLTFM real Platform height (m) for sources influenced by an isolated<br />
structure that has a significant open area between the surface<br />
<strong>and</strong> the bulk of the structure, such as an offshore oil<br />
platform.<br />
0.0<br />
-<br />
0.0<br />
1.0<br />
0.0<br />
The variables in Input Group 13b are entered for each of the "NPT1" point sources. The data for each<br />
source is treated as a separate input subgroup, <strong>and</strong> therefore, must end with an input group terminator<br />
(i.e., !END!). Note that the source number is an optional user comment which is outside of the delimiter<br />
containing the required source data. The data for each source must follow an opening delimiter <strong>and</strong> "X=".<br />
The data for each source is followed by a closing delimiter <strong>and</strong> an input group terminator.<br />
The first two optional variables may be provided for point sources that have a characteristic distribution<br />
much like volume sources. The values are entered in order between delimiters, following “SIGYZI=”.<br />
The third optional variable is typically used for sources with rain-hats that eliminate the initial vertical<br />
momentum of the release. The fourth is for downwash calculations for a structure rests above the surface.<br />
These records must be placed before the input group terminates (i.e., !END!) for the point source.<br />
The format of Input Group 13b for a simulation with eight species is shown below.<br />
---------------<br />
Subgroup (13b)<br />
--------------- a<br />
POINT SOURCE: CONSTANT DATA<br />
-----------------------------<br />
b<br />
c<br />
Source X UTM Y UTM Stack Base Stack Exit Exit Bldg. Emission<br />
No. Coordinate Coordinate Height Elevation Diameter Vel. Temp. Dwash Rates<br />
(km) (km) (m) (m) (m) (m/s) (deg. K)<br />
------ ---------- ---------- ------ ------ -------- ----- -------- ----- --------<br />
1 ! SRCNAM = BLR1 !<br />
1 ! X = 0.1, -3., 40., 25., 2.2, 10., 450., 1., 1.7E00, 1.0E00,<br />
1.0E-02, 1.0E-01, 2.0E-01, 2.4E-01, 2.5E-01, 2.0E-01 !<br />
1 ! SIGYZI = 3., 1.5 !<br />
1 ! FMFAC = 1. !<br />
1 ! ZPLTFM = 0. !<br />
!END!<br />
--------<br />
MAR 2006 – <strong>CALPUFF</strong><br />
F-71
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