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ENH: turbulentDFSEMInlet: various improvements

Merged Kutalmış Berçin requested to merge feature-normalisation-dfsem into develop

Summary

  • ENH: Input entries of R, L and U are now PatchFunction1 type.
  • ENH: Adds two scalar normalisation factors for input R, L and U: Uref and Lref (default=1).
  • ENH: Adds a scalar factor to enable users to tune the C1 normalisation coefficient: scale (default=1).
  • BUG: MappedFile: separates scopes of entries.
  • TUT: Replaces chan395DFSEM and PCF tutorials with planeChannel and oneCellThickPlaneChannel tutorials.

Resolved bugs (If applicable)

#2098 (closed) #2097 (closed) #2090 (closed) #1004 #1744 #2089 (closed)

Details of new models (If applicable)

A set of results obtained from the planeChannel tutorial (and its plot script available to users) with a different set of settings can be seen below:

Ruv vs y

Ruv_vs_y

u vs y

u_vs_y

Ruu vs y

Ruu_vs_y

x vs Cf

x_vs_cf

Rvv vs y

Rvv_vs_y

Rww vs y

Rww_vs_y

Risks

User input

Users (my apologies) will have to change the input syntax for R, L and U entries. For example, for reading the input files in constant/boundaryData/inlet/0/, users were using the following minimal syntax:

inlet
{
    type            turbulentDFSEMInlet;
    delta           1;
    mapMethod       nearestCell;
    value           $internalField;
}

For the same effect, one of the syntax examples could be as follows:

inlet
{
    type            turbulentDFSEMInlet;
    delta           1;

    U               mappedFile;
    R               mappedFile;
    L               mappedFile;
    mapMethod       nearest;

    value           $internalField;
}

or as follows:

inlet
{
    type            turbulentDFSEMInlet;
    delta           1;
        
    U
    {
        type        mappedFile;
        mapMethod   nearest;
    }
    R
    {
        type        mappedFile;
        mapMethod   nearest;
    }
    L
    {
        type        mappedFile;
        mapMethod   nearest;
    }

    value           $internalField;
}

Users can, however, use any of the PatchFunction1 input syntax exemplified in this link and this link.

Regressions
  • The default value of nCellPerEddy entry was changed from 5 to 1, which is the default value corresponding to the original journal paper.
  • The default value of nCellPerEddy entry was kept the same as 5.
Remaining issues
  • Arguably, the DFSEM method has various theoretical issues that need to be addressed (see #2090 (closed)). We have been trying to reach the originators of the method during the last couple of years; and we will continue our efforts, if possible, to cooperate with them to resolve some of these issues.
Edited by Kutalmış Berçin