On the Efficacy of Turbulence Modelling for Sloshing
As part of a wider project to understand the applicability of utilising slosh-based damping for wing-like structures, simulations of partially filled tanks subjected to harmonically oscillating and vertical motion are presented. The Volume of Fluid modelling approach is used to capture the air–water...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8851 |
| _version_ | 1797496173826670592 |
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| author | Omar Ahmed Mahfoze Wendi Liu Stephen M. Longshaw Alex Skillen David R. Emerson |
| author_facet | Omar Ahmed Mahfoze Wendi Liu Stephen M. Longshaw Alex Skillen David R. Emerson |
| author_sort | Omar Ahmed Mahfoze |
| collection | DOAJ |
| description | As part of a wider project to understand the applicability of utilising slosh-based damping for wing-like structures, simulations of partially filled tanks subjected to harmonically oscillating and vertical motion are presented. The Volume of Fluid modelling approach is used to capture the air–water interface and different turbulence models based on the Reynolds Averaged Navier–Stokes equations employed. No-model simulations are also conducted to demonstrate the efficacy of using turbulence models in the simulation of sloshing flows. Accuracy of the models is assessed by comparing with recent well-validated experimental data in terms of the damping effect of the sloshing. A wide range of excitation amplitudes are considered in the study to demonstrate the effectiveness of different turbulence models in representing the flow feature of weak and very violent sloshing. The results show that standard turbulence models can produce an excessive dissipation, especially at the interface, leading to inaccuracies in the estimation of sloshing dynamics of the violent sloshing. This issue is absent in the no-model simulations, and better results are obtained for all tested sloshing conditions, suggesting approaches to mitigate this interfacial dissipation within RANS-based modelling is an important consideration for future direction. |
| first_indexed | 2024-03-10T01:59:54Z |
| format | Article |
| id | doaj.art-7f4454f4e83d4653a9bbee9302657499 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T01:59:54Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7f4454f4e83d4653a9bbee93026574992023-11-23T12:48:01ZengMDPI AGApplied Sciences2076-34172022-09-011217885110.3390/app12178851On the Efficacy of Turbulence Modelling for SloshingOmar Ahmed Mahfoze0Wendi Liu1Stephen M. Longshaw2Alex Skillen3David R. Emerson4Scientific Computing Department, Science and Technology Facilities Council, Daresbury Laboratory, Warrington WA4 4AD, UKScientific Computing Department, Science and Technology Facilities Council, Daresbury Laboratory, Warrington WA4 4AD, UKScientific Computing Department, Science and Technology Facilities Council, Daresbury Laboratory, Warrington WA4 4AD, UKDepartment of Mechanical Aerospace and Civil Engineering, School of Engineering, The University of Manchester, Manchester M13 9PL, UKScientific Computing Department, Science and Technology Facilities Council, Daresbury Laboratory, Warrington WA4 4AD, UKAs part of a wider project to understand the applicability of utilising slosh-based damping for wing-like structures, simulations of partially filled tanks subjected to harmonically oscillating and vertical motion are presented. The Volume of Fluid modelling approach is used to capture the air–water interface and different turbulence models based on the Reynolds Averaged Navier–Stokes equations employed. No-model simulations are also conducted to demonstrate the efficacy of using turbulence models in the simulation of sloshing flows. Accuracy of the models is assessed by comparing with recent well-validated experimental data in terms of the damping effect of the sloshing. A wide range of excitation amplitudes are considered in the study to demonstrate the effectiveness of different turbulence models in representing the flow feature of weak and very violent sloshing. The results show that standard turbulence models can produce an excessive dissipation, especially at the interface, leading to inaccuracies in the estimation of sloshing dynamics of the violent sloshing. This issue is absent in the no-model simulations, and better results are obtained for all tested sloshing conditions, suggesting approaches to mitigate this interfacial dissipation within RANS-based modelling is an important consideration for future direction.https://www.mdpi.com/2076-3417/12/17/8851slosh-induced dampingturbulence modellingmultiphase flow |
| spellingShingle | Omar Ahmed Mahfoze Wendi Liu Stephen M. Longshaw Alex Skillen David R. Emerson On the Efficacy of Turbulence Modelling for Sloshing Applied Sciences slosh-induced damping turbulence modelling multiphase flow |
| title | On the Efficacy of Turbulence Modelling for Sloshing |
| title_full | On the Efficacy of Turbulence Modelling for Sloshing |
| title_fullStr | On the Efficacy of Turbulence Modelling for Sloshing |
| title_full_unstemmed | On the Efficacy of Turbulence Modelling for Sloshing |
| title_short | On the Efficacy of Turbulence Modelling for Sloshing |
| title_sort | on the efficacy of turbulence modelling for sloshing |
| topic | slosh-induced damping turbulence modelling multiphase flow |
| url | https://www.mdpi.com/2076-3417/12/17/8851 |
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