README FOR CAP

The Coefficiients and Properties (CAP) computer code is described

in NASA/TP--2001-210595 available from the CEA website. See "Codes

related to thermodynamic properties of individual species..."

http://www.grc.nasa.gov/WWW/CEAWeb/

The report provides a detailed description of input preparation and

examples of input and output for many species.

The program permits the generation of tabulated thermodynamic functions

from NASA least-squares coefficients. CAP provides considerable

flexibility in the output format, the temperature schedule, and the

energy units of the calculated properties. ThermoBuild at the following

website is similar except for the fact that it uses the NASA thermo

database and does not allow for as much flexibility in energy units.

http://cea.grc.nasa.gov/

The Fortran source code and associated data are available at the

following internet URL:

ftp://ftp.grc.nasa.gov/users/xxminna/CEA+Fortran/cap/

GENERAL INFORMATION TO GET STARTED:

1) Compile the fortran program cap.f. Note that compilers

are freely available from the CEAWeb.

2) When executing CAP, the file cap.elms must be available

if heats of formation and log K values are desired.

3) Input and output files as assumed to be standard input

(I/O unit 5) and standard output (I/O/ unit 6). OPEN

statements may be added to the source code.

4) Run the executable with the provided example "cap.in",e.g.:

cap.x < cap.in > cap.out

Generally, the input consists of 2 records followed by any number of

sets of coefficients in the format of 9 coefficients for Cp--see

ThermoBuild (details given in "About ThermoBuild") or the CAP manual.

The first record contains options in the form of keywords. The

second record indicates the desired T schedule. These records are

also descrided in source code comments.

CAP will generate output tables for each species whoses coefficients

are provided. An unlimited number of species may be run. For species

with several phases, the phases must be supplied in increasing order

by temperature. If the temperature schedule in record 2 exceeds the

range of the coefficients, CAP will use the coefficients for up to

20 percent beyond the endpoint.

The file "cap.elms" contains coefficients for the reference elements.

These data may be revised or expanded.

If you have any comments or questions, please contact Russell.W.Claus@nasa.gov.