Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls
Numerical ventilation (NV) is a well-known problem that occurs when the volume of fluid method is used to model vessels with a bow that creates an acute entrance angle with the free surface, as is typical for both planing hulls and yachts. Numerical ventilation may be considered one of the main sour...
Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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ftustrathclyde:oai:strathprints.strath.ac.uk:75307 2024-05-19T07:33:20+00:00 Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls Gray-Stephens, Angus Tezdogan, Tahsin Day, Sandy 2021-06-01 text https://strathprints.strath.ac.uk/75307/ https://strathprints.strath.ac.uk/75307/1/Gray_Stephens_etal_JOMAE_2021_Minimising_numerical_ventilation_in_cfd_simulations_high_speed_planing_hulls.pdf https://doi.org/10.1115/1.4050085 en eng https://strathprints.strath.ac.uk/75307/1/Gray_Stephens_etal_JOMAE_2021_Minimising_numerical_ventilation_in_cfd_simulations_high_speed_planing_hulls.pdf Gray-Stephens, Angus <https://strathprints.strath.ac.uk/view/author/853837.html> and Tezdogan, Tahsin <https://strathprints.strath.ac.uk/view/author/867189.html> and Day, Sandy <https://strathprints.strath.ac.uk/view/author/22042.html> (2021 <https://strathprints.strath.ac.uk/view/year/2021.html>) Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls. Journal of Offshore Mechanics and Arctic Engineering <https://strathprints.strath.ac.uk/view/publications/Journal_of_Offshore_Mechanics_and_Arctic_Engineering.html>, 143 (3). 031903. ISSN 0892-7219 strath_1 Naval architecture. Shipbuilding. Marine engineering Article PeerReviewed 2021 ftustrathclyde https://doi.org/10.1115/1.4050085 2024-05-01T00:11:23Z Numerical ventilation (NV) is a well-known problem that occurs when the volume of fluid method is used to model vessels with a bow that creates an acute entrance angle with the free surface, as is typical for both planing hulls and yachts. Numerical ventilation may be considered one of the main sources of error in numerical simulations of planning hulls and as such warrants an in-depth analysis. This paper sets out to bring together the available work, as well as performing its own investigation into the problem to develop a better understanding of numerical ventilation and present alternate solutions. Additionally, the success and impact of different approaches are presented in an attempt to help other researchers avoid and correct for numerical ventilation. Interface smearing caused by the simulation being unable to track the free surface is identified as the main source of numerical ventilation. This originates from the interface between the volume mesh and the prism layer mesh. This study investigates this interface, presenting a novel solution to prism layer meshing that was found to minimize numerical ventilation. Through the implementation of a modified high-resolution interface capture (HRIC) scheme and the correct mesh refinements, it is possible to minimize the impact of numerical ventilation to a level that will not affect the results of a simulation and is acceptable for engineering applications. Article in Journal/Newspaper Arctic University of Strathclyde Glasgow: Strathprints Journal of Offshore Mechanics and Arctic Engineering 143 3 |
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Open Polar |
collection |
University of Strathclyde Glasgow: Strathprints |
op_collection_id |
ftustrathclyde |
language |
English |
topic |
Naval architecture. Shipbuilding. Marine engineering |
spellingShingle |
Naval architecture. Shipbuilding. Marine engineering Gray-Stephens, Angus Tezdogan, Tahsin Day, Sandy Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
topic_facet |
Naval architecture. Shipbuilding. Marine engineering |
description |
Numerical ventilation (NV) is a well-known problem that occurs when the volume of fluid method is used to model vessels with a bow that creates an acute entrance angle with the free surface, as is typical for both planing hulls and yachts. Numerical ventilation may be considered one of the main sources of error in numerical simulations of planning hulls and as such warrants an in-depth analysis. This paper sets out to bring together the available work, as well as performing its own investigation into the problem to develop a better understanding of numerical ventilation and present alternate solutions. Additionally, the success and impact of different approaches are presented in an attempt to help other researchers avoid and correct for numerical ventilation. Interface smearing caused by the simulation being unable to track the free surface is identified as the main source of numerical ventilation. This originates from the interface between the volume mesh and the prism layer mesh. This study investigates this interface, presenting a novel solution to prism layer meshing that was found to minimize numerical ventilation. Through the implementation of a modified high-resolution interface capture (HRIC) scheme and the correct mesh refinements, it is possible to minimize the impact of numerical ventilation to a level that will not affect the results of a simulation and is acceptable for engineering applications. |
format |
Article in Journal/Newspaper |
author |
Gray-Stephens, Angus Tezdogan, Tahsin Day, Sandy |
author_facet |
Gray-Stephens, Angus Tezdogan, Tahsin Day, Sandy |
author_sort |
Gray-Stephens, Angus |
title |
Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
title_short |
Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
title_full |
Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
title_fullStr |
Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
title_full_unstemmed |
Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
title_sort |
minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls |
publishDate |
2021 |
url |
https://strathprints.strath.ac.uk/75307/ https://strathprints.strath.ac.uk/75307/1/Gray_Stephens_etal_JOMAE_2021_Minimising_numerical_ventilation_in_cfd_simulations_high_speed_planing_hulls.pdf https://doi.org/10.1115/1.4050085 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://strathprints.strath.ac.uk/75307/1/Gray_Stephens_etal_JOMAE_2021_Minimising_numerical_ventilation_in_cfd_simulations_high_speed_planing_hulls.pdf Gray-Stephens, Angus <https://strathprints.strath.ac.uk/view/author/853837.html> and Tezdogan, Tahsin <https://strathprints.strath.ac.uk/view/author/867189.html> and Day, Sandy <https://strathprints.strath.ac.uk/view/author/22042.html> (2021 <https://strathprints.strath.ac.uk/view/year/2021.html>) Minimizing numerical ventilation in computational fluid dynamics simulations of high-speed planning hulls. Journal of Offshore Mechanics and Arctic Engineering <https://strathprints.strath.ac.uk/view/publications/Journal_of_Offshore_Mechanics_and_Arctic_Engineering.html>, 143 (3). 031903. ISSN 0892-7219 |
op_rights |
strath_1 |
op_doi |
https://doi.org/10.1115/1.4050085 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
143 |
container_issue |
3 |
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1799471405400588288 |