Index of /turbdata/blayers/high_re/correlations/2D_binary_format

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory   -  
[DIR]Re_4000/ 2013-10-09 15:27 -  
[DIR]Re_4850/ 2013-10-09 15:28 -  
[DIR]Re_6500/ 2013-10-09 15:28 -  
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            INFORMATION ABOUT THE BINARY 2D CORRELATION FILES
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There are 8 different two-point spatial correlations stored at 22 wall-distances. 

The file name is coded as:  "Reth[1]_y[2].N[3].[4].c[5].bin", where
 [1]: Reynolds number based on the momentum thickness.
 [2]: Height in inner "p" or outer "d" units.
 [3]: Height position number (see table in the README.txt one directory above)
 [4]: Type of 2D-section: XY,XZ,ZY
 [5]: Type of correlation:
       	       	       	   Velocity : C_uu    C_vv    C_ww    C_uv
			   Vorticity: C_oxox  C_oyoy  C_ozoz
			   Pressure : C_pp


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The files are written in the standard BINARY FORTRAN UNFORMATTED fashion, and
the Byte ordering of each 4-Byte word is LITTLE ENDIAN.

If you try to read these files in MATLAB or C, take into account that IFORT adds 4
bytes at the end and beggining of each record

The 1st record is a header with the following information:

  nx,ny,nz,jindex,Nt    

  nx    (4 Bytes integer): Number of grid points in the streamwise direction.
  ny    (4 Bytes integer): Number of grid points in the wall-normal direction.
  nz    (4 Bytes integer): Number of grid points in the spanwise direction.
  jindex(4 Bytes integer): Index for the wall-normal grid in which the 
                           correlation is recorded.                    
  Nt    (4 Bytes integer): Total number of grid points of the 2D correlation.


The 2nd record is a header with the following information:

  d99,theta,utau,Retheta,Retau,yst

  d99     (8 Bytes real) : 99% boundary layer thickness in computational units.
  theta   (8 Bytes real) : Momentum thickness in computational units.
  utau    (8 Bytes real) : Friction velocity in computational units.
  Retheta (8 Bytes real) : Reynolds number based on the momentum thickness.
  Retau   (8 Bytes real) : Karman number, Retau = utau*d99/nu.
  yst     (8 Bytes real) : Wall-distance at which the correlation is
                           recorded; in computational units.                     

The 3rd record contains (in computational units):

  xg,yg,zg  

  xg      (8 Bytes real) : Grid in the streamwise  direction of size nx.
  yg      (8 Bytes real) : Grid in the wall-normal direction of size ny.
  zg      (8 Bytes real) : Grid in the spanwise    direction of size nz.

The 4th record contains the 2D correlation:

  Corr    (4 Bytes real) : Correlation of total size Nt.
  	     	   	   ------------------------  	     	   	   	       	  	     
    	       	       	   Section XY: Corr(Nx,Ny)  
  	     	     	   Section ZY: Corr(Nz,Ny)  
  	     	     	   Section XZ: Corr(Nx,Nz)  
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 Before final publication of a paper citing these data, please check this
 site for an up-to-date reference.

 Please report any problems with the data to J.A. Sillero, 
 sillero@torroja.dmt.upm.es