[dashsubhankar]

Hi!

I have become familiar with the OpenFOAM multiphaseEulerFoam solver and now I am trying to modify the geometries so that I can model the same on an equipment of my design.

I was trying to model bubble column as shown in the figure. The inlet is from the (8 9 10 11) and the exit is from the entire opposite face. However I am getting the errors:- permission denied/Fatal Error: Cannot Open Files and some other error also saying (when tried in a different way) that vertices unassigned.

The code:-

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  4.1                                   |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 0.01;

vertices
(
    (0 0 0) //0
    (20 0 0) //1
    (20 20 0) //2
    (0 20 0) //3
    (0 0 90) //4
    (20 0 90) //5
    (20 20 90) //6
    (0 20 90) //7
    (9 9 0) //8
    (11 9 0) //9
    (11 11 0) //10
    (9 11 0) //11
    (9 9 90) //12
    (11 9 90) //13
    (11 11 90) //14
    (9 11 90) //15
);

blocks
(
    hex (0 1 2 3 4 5 6 7) (20 20 90) simpleGrading (1 1 1)
    hex (0 1 9 8 4 5 13 12) (20 20 900) simpleGrading (1 1 1)
    hex (1 2 10 9 5 6 14 13) (20 20 900) simpleGrading (1 1 1)
    hex (2 3 11 10 6 7 15 14) (20 20 900) simpleGrading (1 1 1)
    hex (3 0 8 11 7 4 12 15) (20 20 900) simpleGrading (1 1 1)
    hex (8 9 10 11 12 13 14 15) (2 2 900) simpleGrading (1 1 1)
);

edges
(
);

patches
(
    patch inlet
    (
        (8 9 10 11)
    )
    patch outlet
    (
        (12 13 14 15)
		(4 5 13 12)
		(5 6 14 13)
		(6 7 15 14)
		(7 4 12 15)
    )
    wall walls
    (
        (0 4 7 3)
        (2 6 5 1)
		(0 1 5 4)
		(2 3 7 6)
    )
	empty
	(
		(0 1 9 8)
		(1 2 10 9)
		(2 3 11 10)
		(3 0 8 11)
	)
);

mergePatchPairs
(
);

// ************************************************************************* //

[kaber]

Dear dashsubhankar,

your block assignment seems to be the problem.....

Your first block is already the hole domain. You need to make nine blocks, i.e.

convertToMeters 0.01;

vertices
(
    (0 0 0)     //0
    (20 0 0)     //1
    (20 20 0)     //2
    (0 20 0)     //3
    (0 0 90)     //4
    (20 0 90)     //5
    (20 20 90)     //6
    (0 20 90)     //7

    (9 9 0)     //8
    (11 9 0)     //9
    (11 11 0)    //10
    (9 11 0)     //11
    (9 9 90)     //12
    (11 9 90)     //13
    (11 11 90)    //14
    (9 11 90)     //15

    (9 0 0)    //16
    (11 0 0)    //17
    (9 20 0)    //18
    (11 20 0)    //19
    (9 0 90)    //20
    (11 0 90)    //21
    (9 20 90)    //22
    (11 20 90)    //23

    (0 9 0)    //24
    (0 11 0)    //25
    (20 9 0)    //26
    (20 11 0)    //27
    (0 9 90)    //28
    (0 11 90)    //29
    (20 9 90)    //30
    (20 11 90)    //31
);

blocks
(
    hex (0 16 8 24 4 20 12 28) (20 20 90) simpleGrading (1 1 1)
    hex (24 8 11 25 28 12 15 29) (20 20 90) simpleGrading (1 1 1)
    hex (25 11 18 3 29 15 22 7) (20 20 90) simpleGrading (1 1 1)
    hex (16 17 9 8 20 21 13 12) (20 20 90) simpleGrading (1 1 1)
    hex (8 9 10 11 12 13 14 15) (20 20 90) simpleGrading (1 1 1)
    hex (11 10 19 18 15 14 23 22) (20 20 90) simpleGrading (1 1 1)
    //.....
);

edges
(
);

patches
(
    patch Inlet
    (
        (9 8 11 10)
    )
    patch Outlet
    (
            (4 20 12 28)
        (28 12 15 29)
        (29 15 22 7)
        (20 21 13 12)
        (13 14 15 12)
        (15 14 23 22)
    )
    wall Wall
    (
            (0 16 20 4)
        (0 4 28 24)
        (28 29 25 24)
        (29 7 3 25)
        (3 7 22 18)
        (16 17 21 20)
        (22 23 19 18)
    )
);

mergePatchPairs
(
);

best regards