Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves

Pietro D. Tomaselli, Erik Damgaard Christensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

The main challenge in CFD multiphase simulations of breaking waves is the wide range of interfacial length scales occurring in the flow: from the free surface measurable in meters down to the entrapped air bubbles with size of a fraction of a millimeter. This paper presents a preliminary investigation on a CFD model capable of handling this problem. The model is based on a solver, available in the open-source CFD toolkit OpenFOAM, which combines the Eulerian multi-fluid approach for dispersed flows with a numerical interface sharpening method. The solver, enhanced with additional formulations for mass and momentum transfer among phases, was satisfactorily tested against an experimental bubble column flow. The model was then used to simulate the propagation of a laboratory solitary breaking wave. The motion of the free surface was successfully reproduced up to the breaking point. Further implementations are needed to simulate the air entrainment phenomenon
Original languageEnglish
Title of host publicationProceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering
Number of pages10
Publication date2015
Article numberOMAE2015-41640
Publication statusPublished - 2015
EventASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering - St John’s, Newfoundland, Canada
Duration: 31 May 20155 Jun 2015
Conference number: 34

Conference

ConferenceASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
Number34
CountryCanada
CitySt John’s, Newfoundland
Period31/05/201505/06/2015

Cite this

Tomaselli, P. D., & Christensen, E. D. (2015). Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves. In Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering [OMAE2015-41640]
Tomaselli, Pietro D. ; Christensen, Erik Damgaard. / Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves. Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering. 2015.
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abstract = "The main challenge in CFD multiphase simulations of breaking waves is the wide range of interfacial length scales occurring in the flow: from the free surface measurable in meters down to the entrapped air bubbles with size of a fraction of a millimeter. This paper presents a preliminary investigation on a CFD model capable of handling this problem. The model is based on a solver, available in the open-source CFD toolkit OpenFOAM, which combines the Eulerian multi-fluid approach for dispersed flows with a numerical interface sharpening method. The solver, enhanced with additional formulations for mass and momentum transfer among phases, was satisfactorily tested against an experimental bubble column flow. The model was then used to simulate the propagation of a laboratory solitary breaking wave. The motion of the free surface was successfully reproduced up to the breaking point. Further implementations are needed to simulate the air entrainment phenomenon",
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Tomaselli, PD & Christensen, ED 2015, Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves. in Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering., OMAE2015-41640, ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, St John’s, Newfoundland, Canada, 31/05/2015.

Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves. / Tomaselli, Pietro D.; Christensen, Erik Damgaard.

Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering. 2015. OMAE2015-41640.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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AB - The main challenge in CFD multiphase simulations of breaking waves is the wide range of interfacial length scales occurring in the flow: from the free surface measurable in meters down to the entrapped air bubbles with size of a fraction of a millimeter. This paper presents a preliminary investigation on a CFD model capable of handling this problem. The model is based on a solver, available in the open-source CFD toolkit OpenFOAM, which combines the Eulerian multi-fluid approach for dispersed flows with a numerical interface sharpening method. The solver, enhanced with additional formulations for mass and momentum transfer among phases, was satisfactorily tested against an experimental bubble column flow. The model was then used to simulate the propagation of a laboratory solitary breaking wave. The motion of the free surface was successfully reproduced up to the breaking point. Further implementations are needed to simulate the air entrainment phenomenon

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Tomaselli PD, Christensen ED. Investigation on the Use of a Multiphase Eulerian CFD solver to simulate breaking waves. In Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering. 2015. OMAE2015-41640