



     CCFM (version VENTS) USER INFORMATION

     1) User information for CCFM (version VENTS 1.0) computer program

     This disk contains a number of files pertaining to the computer
     program, CCFM (version VENTS), and an associated graphics program,
     CCFMPLT, developed by the Center for Fire Research at the National
     Institute of Standards and Technology.  A brief description of the
     programs are provided below.

     CCFM (version VENTS) (Consolidated Compartment Fire Model version
     VENTS) is a two-layer zone-type compartment fire model computer code. 
     It simulates conditions due to user-specified fires in a multi-room,
     multi-level facility.  The required inputs are a description of room
     geometry and vent characteristics (up to 9 rooms, 20 vents), initial
     state of the inside and outside environment, and fire energy release
     rates as a functions of time (up to 20 fires).  If simulation of
     concentrations of products of combustion is desired, then product
     release rates must also be specified (up to three products).  Vents can
     be simple openings between adjacent spaces (natural vents) or fan/duct
     forced ventilation systems between arbitrary pairs of spaces (forced
     vents).  For forced vents, flow rates and direction can be user-
     specified or included in the simulation by accounting for user-
     specified fan and duct characteristics.  Wind and stack effects can be
     taken into account.  The program outputs for each room are pressure at
     the floor, layer interface height, upper/lower layer temperature and
     (optionally) product concentrations.

     CCFM (version VENTS) is supported by four-part documentation: Part I -
     Physical Basis, L.Y. Cooper and G.P. Forney; Part II - Software
     Reference Guide, G.P. Forney and L.Y. Cooper; Part III - Catalog of
     Algorithms and Subroutines, L.Y. Cooper and G.P. Forney, Eds.; and Part
     IV - User Reference Guide, G.P. Forney, L.Y. Cooper, and W.F. Moss. 
     CCFM (version VENTS) was written in FORTRAN by G.P. Forney and L.Y.
     Cooper.

     CCFMPLT is a graphics program which runs in conjunction with CCFM.  The
     results from CCFM are sent to a user specified data file at each
     prescribed time step.  CCFMPLT plots this data on an IBM-PC compatible
     microcomputer and can optionally provide hardcopy output.  CCFMPLT was
     written in FORTRAN by G.P. Forney.

     2) CCFM FILES

     The following files pertain to the CCFM (version VENTS) program

     Files on DISKC01

     CCFM.EXE      The compiled form of the CCFM (version VENTS) program
     DISKC01.TXT   This text file.
     READC01.BAT   Batch file to display file DISKC01.TXT one screen at a
                   time.

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     USERINFO.TXT  General user information.

     Files on DISKC02

     CCFMPLT.EXE   The compiled form of the graphics program, CCFMPLT.
     MENU790       An input file used by CCFM to define menus, to
                   define help text and to define the default fire scenario
     F77L.EER      FORTRAN run time error messages
     DCASE1.DAT    A one room test case input file
     DCASE1.PLT    The output plot file created by running DCASE1.DAT
                   Used as input for CCFMPLT.EXE
     DCASE1.OUT    The output file created by running DCASE1.DAT
     DISKC02.TXT   This text file.
     READC02.BAT   Batch file to display file DISKC02.TXT one screen at a
                   time.
     USERINFO.TXT  General user information.

     Files on DISKC03

     CCFMUSER.TXT  The Users Guide for the CCFM (version VENTS) program
     DISKC03.TXT   This text file.
     READC03.BAT   Batch file to display file DISKC03.TXT one screen at a
                   time.
     USERINFO.TXT  General user information.

     2.1) CCFM.EXE

     This is a compiled form of the CCFM (version VENTS) program and is run
     by typing CCFM (with the appropriate disk drive letter if necessary)
     after a system prompt.  This file was generated with the Lahey 77
     FORTRAN compiler and requires a math coprocessor to run the program.


     2.2) CCFMUSER.TXT

     This file contains a copy of NISTIR 90-4345 which is the users guide
     for CCFM (version VENTS).  A hardcopy of this document may be obtained
     by typing PRINT CCFMUSER.TXT.


     2.4) CCFMPLT.EXE

     This is a compiled version of the CCFMPLT program and is run by typing
     CCFMPLT (with the appropriate disk drive letter if necessary) after a
     system prompt.  This file was generated with the Lahey 77 FORTRAN
     compiler and requires a math coprocessor to run the program.


     3.) REVISION HISTORY 




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