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A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows
International Journal of Numerical Methods for Heat & Fluid Flow, Volume: 26, Issue: 3/4, Pages: 595 - 623
Swansea University Authors: Raoul van Loon , Perumal Nithiarasu
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DOI (Published version): 10.1108/HFF-06-2015-0233
Abstract
The present review describes and analyses a class of finite element fractional step methodsfor solving the incompressible Navier-Stokes equations. Our objective is not to reproduce the extensivecontributions on the subject, but to report on our long-term experience with and provide a unified overvie...
Published in: | International Journal of Numerical Methods for Heat & Fluid Flow |
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2016
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2020-05-22T18:55:33.5650042 v2 25294 2016-01-02 A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows 880b30f90841a022f1e5bac32fb12193 0000-0003-3581-5827 Raoul van Loon Raoul van Loon true false 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 2016-01-02 MEDE The present review describes and analyses a class of finite element fractional step methodsfor solving the incompressible Navier-Stokes equations. Our objective is not to reproduce the extensivecontributions on the subject, but to report on our long-term experience with and provide a unified overviewof a particular approach: the characteristic based split method. Three procedures, the semi-implicit, quasi-implicit and fully-explicit, are studied and compared. This work provides a thorough assessment of theaccuracy and efficiency of these schemes, both for a first and second order pressure split. In transientproblems, the quasi-implicit form significantly outperforms the fully-explicit approach. The second order(pressure) fractional step method displays significant convergence and accuracy benefits when the quasi-implicit projection method is employed. The fully-explicit method, utilising artificial compressibility and apseudo time stepping procedure, requires no second order fractional split to achieve second order or higheraccuracy. While the fully-explicit form is efficient for steady state problems, due to its ability to handle localtime stepping, the quasi-implicit is the best choice for transient flow calculations with time independent boundary conditions. The semi-implicit form, with its stability restrictions, is the least favoured of all the three forms for incompressible flow calculations. Journal Article International Journal of Numerical Methods for Heat & Fluid Flow 26 3/4 595 623 20 5 2016 2016-05-20 10.1108/HFF-06-2015-0233 COLLEGE NANME Biomedical Engineering COLLEGE CODE MEDE Swansea University Institution 2020-05-22T18:55:33.5650042 2016-01-02T12:07:28.0490457 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Rhodri LT Bevan 1 Etienne Boileau 2 Raoul van Loon 0000-0003-3581-5827 3 R.W. Lewis 4 Perumal Nithiarasu 0000-0002-4901-2980 5 0025294-02012016152405.pdf ijnmhffv3.pdf 2016-01-02T12:16:33.0530000 Output 7805471 application/pdf Accepted Manuscript true 2016-01-02T00:00:00.0000000 true |
title |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
spellingShingle |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows Raoul van Loon Perumal Nithiarasu |
title_short |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
title_full |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
title_fullStr |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
title_full_unstemmed |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
title_sort |
A comparative study of fractional step method in its quasi-implicit, semi-implicit and fully-explicit forms for incompressible flows |
author_id_str_mv |
880b30f90841a022f1e5bac32fb12193 3b28bf59358fc2b9bd9a46897dbfc92d |
author_id_fullname_str_mv |
880b30f90841a022f1e5bac32fb12193_***_Raoul van Loon 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu |
author |
Raoul van Loon Perumal Nithiarasu |
author2 |
Rhodri LT Bevan Etienne Boileau Raoul van Loon R.W. Lewis Perumal Nithiarasu |
format |
Journal article |
container_title |
International Journal of Numerical Methods for Heat & Fluid Flow |
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26 |
container_issue |
3/4 |
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595 |
publishDate |
2016 |
institution |
Swansea University |
doi_str_mv |
10.1108/HFF-06-2015-0233 |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering |
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description |
The present review describes and analyses a class of finite element fractional step methodsfor solving the incompressible Navier-Stokes equations. Our objective is not to reproduce the extensivecontributions on the subject, but to report on our long-term experience with and provide a unified overviewof a particular approach: the characteristic based split method. Three procedures, the semi-implicit, quasi-implicit and fully-explicit, are studied and compared. This work provides a thorough assessment of theaccuracy and efficiency of these schemes, both for a first and second order pressure split. In transientproblems, the quasi-implicit form significantly outperforms the fully-explicit approach. The second order(pressure) fractional step method displays significant convergence and accuracy benefits when the quasi-implicit projection method is employed. The fully-explicit method, utilising artificial compressibility and apseudo time stepping procedure, requires no second order fractional split to achieve second order or higheraccuracy. While the fully-explicit form is efficient for steady state problems, due to its ability to handle localtime stepping, the quasi-implicit is the best choice for transient flow calculations with time independent boundary conditions. The semi-implicit form, with its stability restrictions, is the least favoured of all the three forms for incompressible flow calculations. |
published_date |
2016-05-20T03:30:09Z |
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1763751189447442432 |
score |
11.037603 |