2.6. C5toC6: Input File Conversion Programs for CSAS

K. Bekar

2.6.1. Introduction

Program C5TOC6 can be used to automatically convert a CSAS5 input file to a CSAS6 input file. This functionality can be useful when converting a KENO V.a validation sequence to a KENO-VI validation sequence. It removes the problem of introducing a mistake or inadvertently changing the data when remodeling a geometry to the KENO-VI format. For some cases, however, the converted model may be a very inefficient KENO-VI model.

2.6.2. Description and Input Guide

C5TOC6 is a utility program that can be used to automatically convert a CSAS5 input file to a CSAS6 input file. For C5TOC6, the “=CSASBB” record in the input stream (where the BB is 5, 25, or 2x) is replaced by “=C5TOC6 PARM=CSAS5.” The output file is named _geomnnnnnnn where nnnnnnn is a unique 7-digit number.

Important

The conversion makes no attempt to optimize the output file, so it almost surely will be inefficient in its use of storage, and in its use of bodies. This can lead to models that are very inefficient in their running time also.

The input/output (I/O) units for C5TOC6 are given below.

Unit Number

Function

5

6

7

CSAS5 input file

Output

Input file generated for CSAS6)

A sample C5TOC6 sample input file and corresponding converted CSAS6 input file are shown in Example 2.6.1 and Example 2.6.2, respectively.

Example 2.6.1 Sample C5TOC6 problem.

=c5toc6    parm=csas25
sample problem 1  case 2c8 bare
v7.1-252
read composition
   uranium  1 den=18.76 1 293 92235 93.2 92238 5.6 92234 1.0 92236 0.2 end
end composition
read parameters
   flx=yes fdn=yes far=yes htm=no
end parameters
read geometry
   unit 1
     cylinder 1 1 5.748 5.3825 -5.3825
     cuboid  0 1 6.87 -6.87 6.87 -6.87 6.505 -6.505
end geometry
read array
   nux=2 nuy=2 nuz=2  fill f1 end fill
end array
end data
end

Example 2.6.2 Sample converted CSAS6 output file.

=csas26
sample problem 1  case 2c8 bare
v7-252
read composition
     uranium  1 den=18.76 1 293 92235 93.2 92238 5.6 92234 1.0 92236 0.2 end
  end composition
read parameters
flx=yes fdn=yes far=yes htm=no
end parameters
read geometry
unit          1
cylinder   1
              5.748000000E+00  5.382500000E+00 -5.382500000E+00
            origin   x=  0.000000000E+00   y=  0.000000000E+00
media     1    1       1
                    vol=  8.938968621E+03
cuboid     2
              6.870000000E+00 -6.870000000E+00  6.870000000E+00
             -6.870000000E+00  6.505000000E+00 -6.505000000E+00
media     0    1       2  -1
                    vol=  1.071004479E+04
boundary     2
global unit         2
cuboid 1
              2.748000000E+01  0.000000000E+00  2.748000000E+01
              0.000000000E+00  2.602000000E+01  0.000000000E+00
array      1  1
               place 1 1 1   6.870000000E+00  6.870000000E+00  6.505000000E+00
boundary 1
end geometry
read array
nux=2 nuy=2 nuz=2  fill f1 end fill
end array
end data
end