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7.26.2 Boundary Profile File Format

The format of the profile files is fairly simple. The file can contain an arbitrary number of profiles. Each profile consists of a header that specifies the profile name, profile type ( point, line, mesh, radial, or axial), and number of defining points, and is followed by an arbitrary number of named "fields''. Some of these fields contain the coordinate points and the rest contain boundary data.


All quantities, including coordinate values, must be specified in SI units because FLUENT does not perform unit conversion when reading profile files.

Parentheses are used to delimit profiles and the fields within the profiles. Any combination of tabs, spaces, and newlines can be used to separate elements.


In the general format description below, " |'' indicates that you should input only one of the items separated by |'s and " ...'' indicates a continuation of the list.

((profile1-name point|line|radial n)
 (field1-name a1 a2 ... an)
 (field2-name b1 b2 ... bn)
 (fieldf-name f1 f2 ... fn))

((profile2-name mesh m n)
 (field1-name a11 a12 ... a1n
              a21 a22 ... a2n
              am1 am2 ... amn)
 (fieldf-name f11 f12 ... f1n
              f21 f22 ... f2n
              fm1 fm2 ... fmn))

Boundary profile names must have all lowercase letters (e.g., name). Uppercase letters in boundary profile names are not acceptable. Each profile of type point, line, and mesh must contain fields with names x, y, and, for 3D, z. Each profile of type radial must contain a field with name r. Each profile of type axial must contain a field with name z. The rest of the names are arbitrary, but must be valid Scheme symbols. For compatibility with old-style profile files, if the profile type is missing, point is assumed.


A typical usage of a boundary profile file is to specify the profile of the boundary layer at an inlet. For a compressible flow calculation, this will be done using profiles of total pressure, $k$, and $\epsilon$. For an incompressible flow, it might be preferable to specify the inlet value of streamwise velocity, together with $k$ and $\epsilon$.

Below is an example of a profile file that does this:

((turb-prof point 8)
   4.00000E+00   4.00000E+00   4.00000E+00   4.00000E+00
   4.00000E+00   4.00000E+00   4.00000E+00   4.00000E+00 )
   1.06443E-03   3.19485E-03   5.33020E-03   7.47418E-03
   2.90494E-01   3.31222E-01   3.84519E-01   4.57471E-01 )
   5.47866E+00   6.59870E+00   7.05731E+00   7.40079E+00
   1.01674E+01   1.01656E+01   1.01637E+01   1.01616E+01 )
   4.93228E-01   6.19247E-01   5.32680E-01   4.93642E-01
   6.89414E-03   6.89666E-03   6.90015E-03   6.90478E-03 )
   1.27713E+02   6.04399E+01   3.31187E+01   2.21535E+01
   9.78365E-03   9.79056E-03   9.80001E-03   9.81265E-03 )

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© Fluent Inc. 2006-09-20