COC - Conduit Output Control File

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Abbreviation in Name file

COC

Purpose

The COC File is used to specify the output desired in addition to the output written to the Listing File. For example, node heads and flow terms can be written to separate files for post processing, such as plotting and calculations. Pipe flow rates and Reynolds numbers also can be written to separate files for post processing. The COC File specifies the pipe and node numbers for output as well as the output interval. This file is only used for CFP Modes 1 and 3.

Documentation

Shoemaker, W.B., Kuniansky, E.L., Birk, S., Bauer, S., and Swain, E.D., 2007, Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005: U.S. Geological Survey Techniques and Methods, Book 6, Chapter A24, 50 p.

https://doi.org/10.3133/tm6A24

Related Packages

•Conduit Recharge Package (CRCH)

•Conduit Flow Process Input File (CFP)

Supported in

•MODFLOW-CFP

Other Notes

•The unit numbers used by the Conduit Output Control File are numbered sequentially starting at 201 and the unit number used for output of the information about turbulent or laminer flow is 999.

Input Instructions

For each simulation, all variables, characters, and arrays in the COC Input file are read using free format.

FOR EACH SIMULATION

Data Set 0

[#Text]

Required comment line —“#” must be in column 1.

Data Set 1

[#Text]

Required comment line —“#” must be in column 1.

Data Set 2

NNODES—is an integer number equal to the number of nodes for which flow and head values are desired in separate output files.

Data Set 3

[#Text]

Required comment line —“#” must be in column 1.

Data Set 4

NODE_NUMBERS—are integer values of the node numbers for which flow and head values are desired in separate output files. List one node number per line.

Data Set 5

[#Text]

Required comment line —“#” must be in column 1.

Data Set 6

N_NTS—is an integer value equal to the time step interval for output of node head and flow values. As an example, N_NTS equal to 2 activates node output at each NODE_NUMBERS every 2 time steps.

Data Set 7

[#Text]

Required comment line —“#” must be in column 1.

Data Set 8

NPIPES—is an integer value equal to the number of pipes for which flow rates and Reynolds numbers are desired in separate output files.

Data Set 9

[#Text]

Required comment line —“#” must be in column 1.

Data Set 10

PIPE_NUMBERS—are integer values of the pipe numbers for which flow and head values are desired in separate output files. List one pipe number per line.

Data Set 11

[#Text]

Required comment line —“#” must be in column 1.

Data Set 12

T_NTS—is an integer value equal to the time step interval for output of pipe flow rates and Reynolds num­bers. As an example, T_NTS equal to 2 activates node output at each PIPE_NUMBERS every 2 time steps.