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Numerical Simulations of Sloshing and the Thermodynamic Response Due to Mixing

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  • Erlend Liavåg Grotle

    (Department of Ocean Operations and Civil Engineering, Faculty of Engineering Science, Norwegian University of Science and Engineering, Larsgårdvegen 2, 6009 Ålesund, Norway)

  • Vilmar Æsøy

    (Department of Ocean Operations and Civil Engineering, Faculty of Engineering Science, Norwegian University of Science and Engineering, Larsgårdvegen 2, 6009 Ålesund, Norway)

Abstract

In this paper, we apply computational fluid dynamics (CFD) to study the thermodynamic response enhanced by sloshing inside liquefied natural gas (LNG) fuel tanks. An existing numerical solver provided by OpenFOAM is used to simulate sloshing in a model scaled tank of similar form to an LNG fuel tank. The interface area has been estimated for different sloshing regimes on three different numerical grids representing the tank in 3D. Estimating the interface area is done by performing a grid-independence study. In the most severe sloshing conditions, convergence is not achieved. By combining the results from experiments and CFD, it is found that the interface area and the condensation mass flow rate are in phase for the most severe sloshing condition. The existing CFD solver is modified to determine the pressure drop. The simulation results are compared to the experimental data, and the results are acceptable and thereby show a potential in applying CFD to predict the thermodynamic response due to sloshing. By plotting the temperature contours, indications are found that the exchange of cold bulk and saturated liquid due to sloshing has a significant influence on the thermodynamic response.

Suggested Citation

  • Erlend Liavåg Grotle & Vilmar Æsøy, 2017. "Numerical Simulations of Sloshing and the Thermodynamic Response Due to Mixing," Energies, MDPI, vol. 10(9), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:9:p:1338-:d:110970
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    References listed on IDEAS

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    1. Anastasios Georgoulas & Manolia Andredaki & Marco Marengo, 2017. "An Enhanced VOF Method Coupled with Heat Transfer and Phase Change to Characterise Bubble Detachment in Saturated Pool Boiling," Energies, MDPI, vol. 10(3), pages 1-35, February.
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    Cited by:

    1. Hanyue Zhang & Hong Chen & Xu Gao & Xi Pan & Qingmiao Huang & Junlong Xie & Jianye Chen, 2022. "Numerical Study on Behaviors of the Sloshing Liquid Oxygen Tanks," Energies, MDPI, vol. 15(17), pages 1-17, September.
    2. Peng Yu & Yuanchao Yin & Qianjin Yue & Shanghua Wu, 2022. "Experimental Study of Ship Motion Effect on Pressurization and Holding Time of Tank Containers during Marine Transportation," Sustainability, MDPI, vol. 14(6), pages 1-23, March.
    3. Jessie R. Smith & Savvas Gkantonas & Epaminondas Mastorakos, 2022. "Modelling of Boil-Off and Sloshing Relevant to Future Liquid Hydrogen Carriers," Energies, MDPI, vol. 15(6), pages 1-32, March.
    4. Wu, Sixian & Ju, Yonglin, 2021. "Numerical study of the boil-off gas (BOG) generation characteristics in a type C independent liquefied natural gas (LNG) tank under sloshing excitation," Energy, Elsevier, vol. 223(C).

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