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Simulation of two-p...
Simulation of two-phase flow with moving immersed boundaries
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- Holmvall, Martin, 1976- (författare)
- SCA R&D Ctr, SE-85121 Sundsvall, Sweden,Mid Sweden University
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- Lindström, Stefan B, 1974- (författare)
- KTH,Fiber- och polymerteknologi,Royal Inst Technol, Dept Fibre & Polymer Technol, S-10044 Stockholm, Sweden,Mid Sweden University,FSCN
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- Uesaka, Tetsu (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012),Mid Sweden University,FSCN
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(creator_code:org_t)
- 2010-11-30
- 2011
- Engelska.
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Ingår i: International Journal for Numerical Methods in Fluids. - : Wiley. - 0271-2091 .- 1097-0363. ; 67:12, s. 2062-2080
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A two-dimensional model for immiscible binary fluid flow including moving immersed objects is presented. The fluid motion is described by the incompressible Navier-Stokes equation coupled with a phase-field model based on van der Waals’ free energy density and the Cahn-Hilliard equation. The immersed boundary method has been utilised to handle moving immersed objects and the phase-field boundary conditions have been adapted accordingly. Numerical stability and execution time was significantly improved by the use of a new boundary condition which implements minimisation of the free energy in a direct way. Convergence toward the analytical solution was demonstrated for equilibrium contact angle, the Lucas-Washburn theory and Stefan’s problem. The proposed model may be used for two-phase flow problems with moving boundaries of complex geometry, such as the penetration of fluid into a deformable, porous medium.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- fluid-structure interaction
- immersed boundary
- moving boundary
- two-phase flow
- Chemical engineering
- Kemiteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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