Some housekeeping
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JinduanChen
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The EPANET software was developed by Lewis Rossman (US-EPA).
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This public-domain software developed by the U.S. EPA,
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National Risk Management Research Laboratory in Cincinnati, Ohio.
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Although these programs have been used by the U.S. EPA, no warranty,
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expressed or implied, is made by the U.S. EPA as to the accuracy and
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functioning of the programs and related program material, nor shall the
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fact of distribution constitute any such warranty, and no responsibility
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is assumed by the U.S. EPA in connection therewith.
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Contents of EPANET2.ZIP
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=======================
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This archive contains the source code for the EPANET 2
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network hydraulic and water quality solver. The solver
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provides functions for simulating the extended period
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hydraulic and water quality behavior of water distribution
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system pipe networks. It is written in ANSI-compatible C
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and can be compiled into either a Windows Dynamic Link
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Library of functions or into a command-line executable.
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The archived code is set up for compilation as a DLL.
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To compile it as a command line (or console) application
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simply comment out the "#define DLL" macro statement at
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the top of EPANET.C and un-comment the "#define CLE" macro.
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The DLL version of the solver (epanet2.dll) is used with
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the EPANET 2 user interface executable (epanet2w.exe) to
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form a complete Windows modeling package. It also serves
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as the function library for the EPANET Programmer's Toolkit,
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allowing developers to construct their own customized pipe
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network analysis applications.
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The following C-code files are included in this archive:
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EPANET.C -- main module providing supervisory control
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INPUT1.C -- controls processing of input data
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INPUT2.C -- reads data from input file
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INPUT3.C -- parses individual lines of input data
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INPFILE.C -- saves modified input data to a text file
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RULES.C -- implements rule-based control of piping system
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HYDRAUL.C -- computes extended period hydraulic behavior
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QUALITY.C -- tracks transport & fate of water quality
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OUTPUT.C -- handles transfer of data to and from binary files
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REPORT.C -- handles reporting of results to text file
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SMATRIX.C -- sparse matrix linear equation solver routines
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MEMPOOL.C -- memory pool management routines
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HASH.C -- hash table routines
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Also included are the following header files:
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TOOLKIT.H -- function prototypes of exported DLL functions
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FUNCS.H -- prototypes of all other functions
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TYPES.H -- declaration of global constants and data structures
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VARS.H -- declaration of global variables
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HASH.H -- header file for hash table routines
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MEMPOOL.H -- header file for memory pool routines
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ENUMSTXT.H -- string constants for enumerated types
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TEXT.H -- declaration of all other string constants
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The comments at the top of each file lists the date when the latest
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update was made, and these updates can be located in the code by
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searching for comments with the phrase "/*** Updated" or with the
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release number (e.g., 2.00.12) in them.
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Other useful documentation that can be consulted includes the EPANET
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Programmers Toolkit Help file and the EPANET Version 2 Users Manual.
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-----------------------
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Build 2.00.12 (2/25/08)
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-----------------------
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Computational Engine Changes (epanet2.dll and epanet2d.exe):
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===============================================================================
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CODE MODULES CHANGES
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===============================================================================
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EPANET.C Temporary files are now written to the users's current working
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INPUT1.C directory or to the designated Temporary Directory when running
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VARS.H the Windows GUI, thus avoiding file access problems for users
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FUNCS.H who do not have administrative privileges on their machine.
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-------------------------------------------------------------------------------
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EPANET.C The following tank parameters were made available for retrieval
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TOOLKIT.H using the Toolkit's ENgetnodevalue function: tank diameter,
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EPANET2.H minimum volume, index of the tank's volume curve, the initial,
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minimum, and maximum water levels, the fraction of a 2-compart-
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ment tank devoted to the mixing zone, and the tank's bulk
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reaction rate coefficient. These same parameters (with the
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exception of the volume curve) were made modifiable using the
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ENsetnodevalue function, as was the choice of mixing model.
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See the Toolkit Help file for details.
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-------------------------------------------------------------------------------
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EPANET.C A new Toolkit function, ENaddpattern, was added that allows
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TOOLKIT.C programmers to add a new time pattern to the network in any
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EPANET2.H custom code that they write.
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-------------------------------------------------------------------------------
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HYDRAUL.C A DAMPLIMIT parameter was added to control at what point during
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INPUT1.C the hydraulic solution iterations status checks on PRVs and PSVs
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INPUT3.C begin and subsequent flow changes are dampened.
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REPORT.C
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VARS.H
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TEXT.H
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-------------------------------------------------------------------------------
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HYDRAUL.C Demands for tanks (net inflows/outflows) were not always being
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set to zero when the tank was full or empty which was causing
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problems in the water quality routing solutions.
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-------------------------------------------------------------------------------
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QUALITY.C The water quality functions for all of the tank mixing models
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were modified so as to produce more robust results for cases
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where there is a significant amount of volume exchange over a
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water quality time step.
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-------------------------------------------------------------------------------
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EPANET.C A problem with the system not recognizing that water quality
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QUALITY.C reactions could begin after some initial period of time when
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VARS.H the Toolkit was used to modify reaction rate coefficients was
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fixed.
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-------------------------------------------------------------------------------
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INPFILE.C A problem with extraneous lines being written to the [REPORT]
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section of an EPANET input file created with the ENsaveinpfile
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function was fixed. Also the number of decimal places for some
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items written to the saved file, such as nodal demands, was
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increased.
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-------------------------------------------------------------------------------
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TYPES.H The code version was changed to 20012 and INT4 was explicitly
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defined as an "int" data type.
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===============================================================================
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