An enriched finite element method is described for capillary hydrodynamics including dynamic wetting. The method is enriched via the Conformal Decomposition Finite Element Method (CDFEM). Two formulations are described, one with first-order accuracy and one with second-order accuracy in time. Both formulations utilize a semi-implicit form for the surface tension that is shown to effectively circumvent the explicit capillary time step limit. Sharp interface boundary conditions are developed for capturing the dynamic contact angle as the fluid interface moves along the wall. By virtue of the CDFEM, the contact line is free to move without risk of mesh tangling, but is sharply captured. Multiple problems are used to demonstrate the effectiveness of the methods.
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ASME 2017 Fluids Engineering Division Summer Meeting
July 30–August 3, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5805-9
PROCEEDINGS PAPER
A Conformal Decomposition Finite Element Method for Dynamic Wetting Applications Available to Purchase
David R. Noble,
David R. Noble
Sandia National Laboratories, Albuquerque, NM
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Alec Kucala,
Alec Kucala
Sandia National Laboratories, Albuquerque, NM
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Mario J. Martinez
Mario J. Martinez
Sandia National Laboratories, Albuquerque, NM
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David R. Noble
Sandia National Laboratories, Albuquerque, NM
Alec Kucala
Sandia National Laboratories, Albuquerque, NM
Mario J. Martinez
Sandia National Laboratories, Albuquerque, NM
Paper No:
FEDSM2017-69378, V01BT11A023; 7 pages
Published Online:
October 24, 2017
Citation
Noble, DR, Kucala, A, & Martinez, MJ. "A Conformal Decomposition Finite Element Method for Dynamic Wetting Applications." Proceedings of the ASME 2017 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Measurement and Instrumentation; Fluid Dynamics of Wind Energy; Renewable and Sustainable Energy Conversion; Energy and Process Engineering; Microfluidics and Nanofluidics; Development and Applications in Computational Fluid Dynamics; DNS/LES and Hybrid RANS/LES Methods. Waikoloa, Hawaii, USA. July 30–August 3, 2017. V01BT11A023. ASME. https://doi.org/10.1115/FEDSM2017-69378
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