Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter January 6, 2023

The 33rd German CFD Network of Competence Meeting: 20 years of advances in the numerical 3D simulation of reactor relevant flows

  • Angel Papukchiev EMAIL logo and Berthold Schramm
From the journal Kerntechnik

Abstract

The 33rd German CFD Network of Competence Meeting was held in March 2022 at the Gesellschaft für Anlagen-und Reaktorsicherheit (GRS) gGmbH in Garching, Germany. In 2022 the meeting celebrates its 20th anniversary with 17 scientific presentations, distributed in two main sessions: “Simulation of Reactor Cooling Circuit Flows” and “Simulation of Reactor Containment Flows”. This paper gives an overview of the different contributions, presented at this anniversary meeting, and also provides information on the background and the objectives of the German CFD Network of Competence.


Corresponding author: Angel Papukchiev, Gesellschaft für Anlagen-und Reaktorsicherheit (GRS) gGmbH, Boltzmannstrasse 14, 85748 Garching near Munich, Germany, E-mail:

Funding source: Federal Ministry for Economics Climate Action (BMWK) or the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV) based on decisions by the German Bundestag. This holds also for the GRS activities within the German CFD Network of Competence, for which the authors express their gratitude

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Large part of the scientific work presented in this paper was/is financed by the Federal Ministry for Economics Climate Action (BMWK) or the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV) based on decisions by the German Bundestag. This holds also for the GRS activities within the German CFD Network of Competence, for which the authors express their gratitude.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

References

Allelein, H.-J., Schwarz, S., Fischer, K., Vendel, J., Malet, J., Bentaib, A., Studer, E., Paillere, H., and Houkema, M. (2007). International standard problem ISP-47 on containment thermal-hydraulics. Final report, NEA/CSNI/R(2007)10.Search in Google Scholar

Andreani, M. (2016). Synthesis of the OECD/NEA-PSI CFD benchmark exercise. Nucl. Eng. Des. 299: 59–80, https://doi.org/10.1016/j.nucengdes.2015.12.029.Search in Google Scholar

Andreani, M., Gaikwad, A., Ganjuc, S., Gera, B., Grigoryev, S., Enrique Herranz, L., Huhtanen, R., Kaleb, V., Kanaev, A., Kapulla, R., et al.. (2019). Synthesis of a CFD benchmark exercise based on a test in the PANDA facility addressing the stratification erosion by a vertical jet in presence of a flow obstruction. Nucl. Eng. Des. 354, https://doi.org/10.1016/j.nucengdes.2019.110177.Search in Google Scholar

Bentaib, A., Chaumeix, N., Nyrenstedt, G., Bleyer, A., Maas, L., Gastaldo, L., Kljenak, I., Dovizio, D., Kudriakov, S., Schramm, B., et al.. (2022). ETSON-SAMHYCO-NET benchmark on simulations of upward flame propagation experiment in representative hydrogen–air–steam mixtures of severe accidents containments atmosphere. In: Proc. of the NURETH-19 conference, online, March 6–11, 2022.Search in Google Scholar

Bruder, M. and Sattelmayer, T. (2018). An empirical correlation for the void fraction at critical heat flux close to the wall for subcooled flow boiling of a low boiling refrigerant. Heat Mass Trans. Res. J. 2: 14–28.Search in Google Scholar

Evrim, C., Chu, X., and Laurien, E. (2020). Analysis of thermal mixing characteristics in different T-junction configurations. Int. J. Heat Mass Tran. 158, https://doi.org/10.1016/j.ijheatmasstransfer.2020.120019.Search in Google Scholar

Freitag, M., Schmidt, E., Gupta, S., and Poss, G. (2016). Simulation benchmark based on THAI-experiment on dissolution of a steam stratification by natural convection. Nucl. Eng. Des. 299: 37–45, https://doi.org/10.1016/j.nucengdes.2015.07.001.Search in Google Scholar

Freitag, et al.. (2022). Simulation benchmark based on THAI experiment in generation and dissolution of a light gas stratification by natural convection. In: Proc. of the NURETH-19 conference, online, March 6–11, 2022.Search in Google Scholar

Fuchs, P. and Koch, M. (2021). Analysis of two-phase water hammer phenomena with OpenFOAM using a modified cavitation approach. In: 32nd German CFD Network of Competence Meeting, online, 16–17 March, 2021.Search in Google Scholar

GraVent Explosion Channel. Available at: https://www.epc.ed.tum.de/td/forschung/ddt/experimental-setup/gravent-explosion-channel/.Search in Google Scholar

Gupta, S. (2015). Experimental investigations relevant for hydrogen and fission product issues raised by the Fukushima accident. Nucl. Eng. Technol. 47: 11–25, https://doi.org/10.1016/j.net.2015.01.002.Search in Google Scholar

Gupta, S., Freitag, M., and Poss, G. (2021). THAI experimental research on hydrogen risk and source term related safety system. Front. Energy 887–915, https://doi.org/10.1007/s11708-021-0789-1.Search in Google Scholar

Herb, J. and Chiriac, F. (2016). One- and two-phase coupling of OpenFOAM with the thermal-hydraulic code ATHLET for nuclear safety analyses. In: 11th OpenFOAM® Workshop, Guimarães, Portugal, 26–30 June, 2016.Search in Google Scholar

Hristov, H., Herb, J., and Papukchiev, A. (2019). Analyses of the flow mixing phenomena in a pressurized water reactor by 1D- and 3D coupled 1D-3D simulations. In: Proc. of the NURETH-18 conference, Portland, USA, August 18–23, 2019.Search in Google Scholar

Hänsch, S., Lucas, D., Krepper, E., and Höhne, T. (2012). A multi-field two-fluid concept for transitions between different scales of interfacial structures. Int. J. Multiphas. Flow 47: 171–182, https://doi.org/10.1016/j.ijmultiphaseflow.2012.07.007.Search in Google Scholar

Höhne, T., Kliem, S., and Bieder, U. (2018). IAEA CRP benchmark of ROCOM PTS test case for the use of CFD in reactor design using the CFD-codes ANSYS CFX and TRIO CFD. Nucl. Eng. Des. 333: 161–180, https://doi.org/10.1016/j.nucengdes.2018.04.017.Search in Google Scholar

Kliem, S., Rohde, U., and Weiß, F.-P. (2004). Core response of a PWR to a slug of under-borated water. Nucl. Eng. Des. 230: 121–132, https://doi.org/10.1016/j.nucengdes.2003.11.021.Search in Google Scholar

Kliem, S. and Franz, R. (2016). OECD PKL3 Project – Final Report on the ROCOM Tests, Institute Report, HZDR\FWO\2016\01. Helmholtz Zentrum Dresden-Rossendorf, Dresden, Germany.Search in Google Scholar

Kelm, S., Lehmkuhl, J., Jahn, W., and Allelein, H.-J. (2016). A comparative assessment of different experiments on buoyancy driven mixing processes by means of CFD. Ann. Nucl. Energy 93: 50–57, https://doi.org/10.1016/j.anucene.2015.12.032.Search in Google Scholar

Kelm, S., Kampili, M., Liu, X., George, A., Schumacher, D., Druska, C., Struth, S., Kuhr, A., Ramacher, L., Allelein, H.-J. et al.. (2021). The tailored CFD Package ‘containmentFOAM’ for analysis of containment atmosphere mixing, H2/CO mitigation and aerosol transport, 2021. Available at: https://www.mdpi.com/2311-5521/6/3/100.10.3390/fluids6030100Search in Google Scholar

Kelm, S., Kapulla, R., and Allelein, H.-J. (2017). Erosion of a confined stratified layer by a vertical jet – detailed assessment of a CFD approach against the OECD/NEA PSI benchmark. Nucl. Eng. Des. 312: 228–238, https://doi.org/10.1016/j.nucengdes.2016.09.014.Search in Google Scholar

Kelm, S., Müller, H., Hundhausen, A., Druska, C., Kuhr, A., and Allelein, H.-J. (2019). Development of a multi-dimensional wall-function approach for wall condensation. Nucl. Eng. Des. 353, https://doi.org/10.1016/j.nucengdes.2019.110239.Search in Google Scholar

Krepper, E., Cartland-Glover, G., Grahn, A., Weiss, F.-P., Alt, S., Hampel, R., Kästner, W., and Seeliger, A. (2009). CFD-modeling of insulation debris transport phenomena in water flow. Nucl. Eng. Des. 240: 2357–2364, https://doi.org/10.1016/j.nucengdes.2009.11.012.Search in Google Scholar

Krepper, E., Beyer, M., Lucas, D., and Schmidtke, M. (2011). A population balance approach considering heat and mass transfer – experiments and CFD simulations. Nucl. Eng. Des. 241: 2889–2897, https://doi.org/10.1016/j.nucengdes.2011.05.003.Search in Google Scholar

Lehnigk, R., Bruschewski, M., Huste, T., Lucas, D., Rehm, M., and Schlegel, F. (2023). Sustainable development of simulation setups and addons for OpenFOAM for nuclear reactor safety research. Kerntechnik 88: 131–140, https://doi.org/10.1515/kern-2022-0107.Search in Google Scholar

Mistry, H. (2023). Numerical investigations of flow in nuclear fuel assembly with spacer grid and OpenFOAM validation. Kerntechnik 88: 141–154, https://doi.org/10.1515/kern-2022-0109.Search in Google Scholar

Mäkynen, et al.. (1997). AHMED experiments on hygroscopic and inert aerosol behaviour in LWR containment conditions: experimental results. Nucl. Eng. Des. 178: 45–59, https://doi.org/10.1016/S0029-5493(97)00174-X.Search in Google Scholar

OECD/NEA (2007). Best practice Guidelines for the Use of CFD in nuclear reactor safety applications. NEA/CSNI/R(2007)5.Search in Google Scholar

OECD/NEA (2012). Report of the OECD/NEA ISP-49 on Hydrogen Combustion, NEA/CSNI/R(2011)9. Available at: https://www.oecd-nea.org/upload/docs/application/pdf/2021-03/csni-r2011-9.pdf.Search in Google Scholar

OECD/NEA (2013). Report of the OECD/NEA KAERI Rod bundle CFD benchmark exercise. NEA/CSNI/R(2013)5.Search in Google Scholar

Papukchiev, A. and Lerchl, G. (2009). Extension of the simulation capabilities of the 1D system code ATHLET by coupling with the 3D software package ANSYS CFX. In: Proc. of the NURETH-13 Conference, Kanazawa, Japan, September 27–October 3, 2009.Search in Google Scholar

Papukchiev, A., Lerchl, G., Weis, J., Scheuerer, M., and Austregesilo, H. (2012). Multiscale analysis of a transient pressurized thermal shock experiment with the coupled code ATHLET-ANSYS CFX. ATW Journal 57: 402–409.Search in Google Scholar

Papukchiev, A., Geffray, C., Jeltsov, M., Kööp, K., Kudinov, P., and Grishchenko, D. (2015). Multiscale analysis of forced and natural convection including heat transfer phenomena in the TALL-3D experimental facility. In: Proc. of the NURETH-16 Conference, Chicago, USA, August 30 – Sept. 4, 2015.Search in Google Scholar

Papukchiev, A. (2019). Numerical analysis of reactor relevant vibrations using advanced multiphysics CFD-CSM methods. Nucl. Eng. Des. 350: 21–32, https://doi.org/10.1016/j.nucengdes.2019.05.003.Search in Google Scholar

Papukchiev, A. and Yang, Z. (2021). Application of the coupled code ATHLET-ANSYS CFX for the simulation of the flow mixing inside the ROCOM test facility. Prog. Nucl. Energy 137, https://doi.org/10.1016/j.pnucene.2021.103785.Search in Google Scholar

Papukchiev, A. (2022). FSI analysis of flow-induced vibrations in a BWR instrumentation tube experiment. In: Proc. of the NURETH-19 conference, online, March 6–11, 2022.Search in Google Scholar

Papukchiev, A. (2023). GRS contributions to flow-induced vibrations related activities in Europe, Kerntechnik 88: 155–173, https://doi.org/10.1515/kern-2022-0110.Search in Google Scholar

SETCOM Experimental Facility (2022). Available at: https://www.wsa.rwth-aachen.de/cms/WSA/Forschung/Forschungsprojekte/∼ogurl/GRS-Fkz-1501591-SETCOM-2-AP-Experi/?lidx=1.Search in Google Scholar

Scheuerer, M. and Weis, J. (2012). Transient computational fluid dynamics analysis of emergency core cooling injection at natural circulation conditions. Nucl. Eng. Des. 253: 343–350, https://doi.org/10.1016/j.nucengdes.2011.08.063.Search in Google Scholar

Stewering, J., Herb, J., and Schramm, B. (2019). Wall condensation modelling for OpenFOAM applications to nuclear power plants. In: Proc. of the 7th ESI OpenFOAM conference, 2019.Search in Google Scholar

Stewering, J. (2020). A new PAR model for OpenFOAM: development and validation. In: Proc. of the OECD/NEA CFD4NRS-8 Workshop, online, November 25–27, 2020.Search in Google Scholar

TOPFLOW Facility. Available at: https://www.hzdr.de/db/Cms?pNid=1004.Search in Google Scholar

Zschaeck, G., Frank, T., and Burns, A. (2014). CFD modelling and validation of wall condensation in the presence of non-condensable gases. Nucl. Eng. Des. 279: 137–146, https://doi.org/10.1016/j.nucengdes.2014.03.007.Search in Google Scholar

Zwijsen, K., Roelofs, F., Vivaldi, D., Iakovides, H., Cioncolini, A., Papukchiev, A., Benhamadouche, S., Deri, E., Uribe, J., Hadzic, H., et al.. (2022a). VIKING: a joint industry project on fluid-structure interaction. In: Proc. of the NURETH-19 conference, online, March 6–11, 2022.Search in Google Scholar

Zwijsen, K., Papukchiev, A., Vivaldi, Hadžić, H., Benhamadouche, S., Benguigui, W., and Plan-quart, P. (2022b). GO-VIKING: a Horizon Europe project on flow-induced vibrations. In: 12th International Conference on Flow-induced Vibration, Paris-Saclay, July 5–8, 2022.Search in Google Scholar

Received: 2022-11-18
Published Online: 2023-01-06
Published in Print: 2023-04-25

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 31.5.2023 from https://www.degruyter.com/document/doi/10.1515/kern-2022-0108/html
Scroll to top button