[cfd@kgp]

Dear openFoam experts,

the controlDict which was working for openfoam 3.0 fails to perform for the new version.

do I have to change any style of writing functions in version 4.0?

the error which I get is given below,

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  4.1                                   |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 4.1-1e03d68d4f4e
Exec   : buoyantPimpleFoam
Date   : Nov 26 2016
Time   : 18:33:41
Host   : "CFD-desktop"
PID    : 21813
Case   : /home/ojas/OPENFOAM_4.0_18_november/LUST/beta-2
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: Operating solver in PISO mode

Reading thermophysical properties

Selecting thermodynamics package 
{
    type            heRhoThermo;
    mixture         pureMixture;
    transport       const;
    thermo          hConst;
    equationOfState perfectFluid;
    specie          specie;
    energy          sensibleInternalEnergy;
}

Reading field U

Reading/calculating face flux field phi

Creating turbulence model

Selecting turbulence model type laminar

Reading g

Reading hRef
Calculating field g.h

Reading field p_rgh

Creating field dpdt

Creating field kinetic energy K

No MRF models present

Radiation model not active: radiationProperties not found
Selecting radiationModel none
Creating finite volume options from "constant/fvOptions"

Selecting finite volume options model type solidificationMeltingSource
    Source: sMS1
    - selecting cells using cellZone solid
    - selected 21504 cell(s) with volume 5.64515e-06
Courant Number mean: 0 max: 0

Starting time loop



--> FOAM FATAL IO ERROR: 
'functions' entry is not a dictionary

file: /home/ojas/OPENFOAM_4.0_18_november/LUST/beta-2/system/controlDict from line 18 to line 85.

    From function bool Foam::functionObjectList::read()
    in file db/functionObjects/functionObjectList/functionObjectList.C at line 582.

FOAM exiting

and the controlDict is as follows,

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  3.0.0                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

libs (
      "libOpenFOAM.so"
      "libsimpleSwakFunctionObjects.so"
      "libswakFunctionObjects.so"
      "libgroovyBC.so"
     );
application     buoyantPimpleFoam;

startFrom       startTime;

startTime       0;

stopAt          endTime;

endTime         3000.0;

deltaT          0.005;

writeControl    adjustableRunTime;

writeInterval   60;

purgeWrite      0;

writeFormat     binary;

writePrecision  8;

writeCompression off;

timeFormat      general;

timePrecision   6;

runTimeModifiable yes;

functions
(

    WallHT
    {

        type patchExpression;
        patches ( "leftWall" );
    outputControlMode timeStep;
    outputInterval 1;
    variables ("k1=32;" );


        expression "k1*(snGrad(T))*area()";
        accumulations (sum);
        verbose true;
        //        debugCommonDriver 1;
    }
   uysqr
    {
        type swakExpression;
        valueType cellZone;
        zoneName solid; // or whatever is your zoneName
        accumulations (
            min 
        );
       variables ("fl=(mag(381.5*(T-302.78))/80160);" );
        expression "sum((U.y*U.y)*vol()*fl)/sum(vol()*fl)";
        verbose true;
       //outputControlMode timestep
    }
);



//TRY ALL values average for one case they should match//
// ************************************************************************* //

Please help

[wyldckat]

Quick answer:

• I've moved your post from http://www.cfd-online.com/Forums/ope...m-4-0-a-3.html to a new thread, because this is a using problem, not an installation problem.
• Something happened between your original "controlDict" file on OpenFOAM 3.* and the current one for 4.*, because the functions block is defined incorrectly... you have:
  

  functions
  (
      //...
  );

  when the correct format is:
  

  functions
  {
      //...
  }

  When in doubt, check the User Guide and the OpenFOAM "tutorials" for examples.

[cfd@kgp]

Many thanks wyldckat for identification of my mistake and the useful general tip!!!