ConeCylinderInjection: Extend Lagrangian parcels injection into 3D.

Table of contents

• Description
• How to use
• Contact
• Citing
• References
• License

Description

Cone cylindrical injection submodel that extends the 2D disc coneInjection model, implemented in lagrangianIntermediate library, into 3D. This allows better handling of the Lagrangian data especially when lots of parcels are injected on the 2D disc that occasional solver crashes were reported.

In the new model, computational parcels are randomly injected from cylinder of fixed height. The parameters for position, direction, cone angles, and disc inner and outer diameters are all preserved for the new model, while the parameters hCylinder and offsetCylinder are required to set the cylinder height and offset from injector position. Therefore, instead of injecting parcels over a disc (i.e. 2D surface), they are introduced randomly within a 3D finite volume cylinder.

An artistic illustration of the cylindrical injection model is depicted in the following figure. Further details are found in [1]

Artistic illustration of the cone cylindrical injection model, while setting a solid cylinder geometry (zero inner diameter). Source: https://doi.org/10.3390/en13133360

The class ConeCylinderInjection implementing the present model is in the same level as ConeInjection class, i.e. they both inherit from templated InjectionModel.

How to use

• Compile the library by executing Allwmake

• Link the library during solver runTime. This is achieved by adding the following to system/controlDict of the simulation case directory.

libs
(
    "libconeCylinderInjection.so"
);

• Choose cylinder injection model from the corresponding subdictionary in constant/sprayCloudProperties as in the following example.

    injectionModels
    {

        model1
        {
            type            coneCylinderInjection;
            injectionMethod cylinder;

            // Geometry
            position        (-0.15 -0.1 0);
            direction       (1 0 0);
            thetaInner      0;
            thetaOuter      45;
            dInner          0;
            dOuter          0.05;
            hCylinder       0.05;
            offsetCylinder  0.0;

            .
            .
            .

        }
    }

Contact

• Mahmoud Gadalla ([email protected])
• Bulut Tekgül ([email protected])
• Heikki Kahila ([email protected])

Citing

If you use our model, please consider citing both works [1] and [2] in the references.

References

[1] M. Gadalla, J. Kannan, B. Tekgül, S. Karimkashi, O. Kaario, V. Vuorinen. Large-Eddy Simulation of ECN Spray A: Sensitivity Study on Modeling Assumptions. Energies. 13(13):3360. 10.3390/en13133360 (2020).

BibTex

@article{Gadalla2020,
    author = {Gadalla, Mahmoud and Kannan, Jeevananthan and Tekg{\"{u}}l, Bulut and Karimkashi, Shervin and Kaario, Ossi and Vuorinen, Ville},
    doi = {10.3390/en13133360},
    issn = {1996-1073},
    journal = {Energies},
    month = {jul},
    number = {13},
    pages = {3360},
    publisher = {MDPI AG},
    title = {{Large-Eddy Simulation of ECN Spray A: Sensitivity Study on Modeling Assumptions}},
    volume = {13},
    year = {2020}
}

[2] H. Kahila, A. Wehrfritz, O. Kaario, M. G. Masouleh, N. Maes, B. Somers, V. Vuorinen. Large-eddy simulation on the influence of injection pressure in reacting Spray A. Combustion and Flame, Volume 191, Pages 142-159. 10.1016/j.combustflame.2018.01.004 (May 2018)

BibTex

@article{Kahila2018,
  doi = {10.1016/j.combustflame.2018.01.004},
  url = {https://doi.org/10.1016/j.combustflame.2018.01.004},
  year = {2018},
  month = may,
  publisher = {Elsevier {BV}},
  volume = {191},
  pages = {142--159},
  author = {Heikki Kahila and Armin Wehrfritz and Ossi Kaario and Mahdi Ghaderi Masouleh and Noud Maes and Bart Somers and Ville Vuorinen},
  title = {Large-eddy simulation on the influence of injection pressure in reacting Spray A},
  journal = {Combustion and Flame}
}

License

ConeCylinderInjection library follows the GNU General Public License. See the LICENSE file for license rights and limitations.