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On diffuse interfac...
On diffuse interface modeling and simulation of surfactants in two-phase fluid flow
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- Engblom, Stefan (författare)
- Uppsala universitet,Avdelningen för beräkningsvetenskap,Tillämpad beräkningsvetenskap
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- Do-Quang, Minh (författare)
- KTH,Fysiokemisk strömningsmekanik,Linné Flow Center, FLOW
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- Amberg, Gustav (författare)
- KTH,Fysiokemisk strömningsmekanik,Linné Flow Center, FLOW
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- Tornberg, Anna-Karin (författare)
- KTH,Numerisk analys, NA,Linné Flow Center, FLOW
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(creator_code:org_t)
- 2015-06-03
- 2013
- Engelska.
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Ingår i: Communications in Computational Physics. - : Global Science Press. - 1815-2406 .- 1991-7120. ; 14:4, s. 879-915
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.4...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- An existing phase-fieldmodel of two immiscible fluids with a single soluble surfactant present is discussed in detail. We analyze the well-posedness of the model and provide strong evidence that it is mathematically ill-posed for a large set of physically relevant parameters. As a consequence, critical modifications to the model are suggested that substantially increase the domain of validity. Carefully designed numerical simulations offer informative demonstrations as to the sharpness of our theoretical results and the qualities of the physical model. A fully coupled hydrodynamic test-case demonstrates the potential to capture also non-trivial effects on the overall flow.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Cahn-Hilliard equation
- Ginzburg-Landau free energy
- Phase-field model
- Surface active agent
- Well-posedness
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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