Assessment of volume of fluid and immersed boundary methods for droplet computations
(2004) In International Journal for Numerical Methods in Fluids 46(2). p.109-125- Abstract
- The volume of fluid (VOF) and immersed boundary (IB) methods are two popular computational techniques for multi-fluid dynamics. To help shed light on the performance of both techniques, we present accuracy assessment, which includes interfacial geometry, detailed and global fluid flow characteristics, and computational robustness. The investigation includes the simulations of a droplet under static equilibrium as a limiting test case and a droplet rising due to gravity for Re less than or equal to 1000. Surface tension force models are key issues in both VOF and IB and alternative treatments are examined resulting in improved solution accuracy. A refined curvature model for VOF is also presented. With the newly developed interfacial... (More)
- The volume of fluid (VOF) and immersed boundary (IB) methods are two popular computational techniques for multi-fluid dynamics. To help shed light on the performance of both techniques, we present accuracy assessment, which includes interfacial geometry, detailed and global fluid flow characteristics, and computational robustness. The investigation includes the simulations of a droplet under static equilibrium as a limiting test case and a droplet rising due to gravity for Re less than or equal to 1000. Surface tension force models are key issues in both VOF and IB and alternative treatments are examined resulting in improved solution accuracy. A refined curvature model for VOF is also presented. With the newly developed interfacial treatments incorporated, both IB and VOF perform comparably well for the droplet dynamics under different flow parameters and fluid properties. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/268542
- author
- Lörstad, Daniel LU ; Francois, M ; Shyy, W and Fuchs, Laszlo LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- VOF, immersed boundary, volume of fluid, interfacial flow, surface tension, IB
- in
- International Journal for Numerical Methods in Fluids
- volume
- 46
- issue
- 2
- pages
- 109 - 125
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000223581500001
- scopus:4344681905
- ISSN
- 1097-0363
- DOI
- 10.1002/fld.746
- language
- English
- LU publication?
- yes
- id
- 70c1b964-c672-4fe7-bcea-c80af546ea0b (old id 268542)
- date added to LUP
- 2016-04-01 12:05:51
- date last changed
- 2022-03-28 20:07:11
@article{70c1b964-c672-4fe7-bcea-c80af546ea0b, abstract = {{The volume of fluid (VOF) and immersed boundary (IB) methods are two popular computational techniques for multi-fluid dynamics. To help shed light on the performance of both techniques, we present accuracy assessment, which includes interfacial geometry, detailed and global fluid flow characteristics, and computational robustness. The investigation includes the simulations of a droplet under static equilibrium as a limiting test case and a droplet rising due to gravity for Re less than or equal to 1000. Surface tension force models are key issues in both VOF and IB and alternative treatments are examined resulting in improved solution accuracy. A refined curvature model for VOF is also presented. With the newly developed interfacial treatments incorporated, both IB and VOF perform comparably well for the droplet dynamics under different flow parameters and fluid properties.}}, author = {{Lörstad, Daniel and Francois, M and Shyy, W and Fuchs, Laszlo}}, issn = {{1097-0363}}, keywords = {{VOF; immersed boundary; volume of fluid; interfacial flow; surface tension; IB}}, language = {{eng}}, number = {{2}}, pages = {{109--125}}, publisher = {{John Wiley & Sons Inc.}}, series = {{International Journal for Numerical Methods in Fluids}}, title = {{Assessment of volume of fluid and immersed boundary methods for droplet computations}}, url = {{http://dx.doi.org/10.1002/fld.746}}, doi = {{10.1002/fld.746}}, volume = {{46}}, year = {{2004}}, }