Dynamical modeling of surface tension
Conference
·
OSTI ID:286111
In a recent review it is said that free-surface flows ``represent some of the difficult remaining challenges in computational fluid dynamics``. There has been progress with the development of new approaches to treating interfaces, such as the level-set method and the improvement of older methods such as the VOF method. A common theme of many of the new developments has been the regularization of discontinuities at the interface. One example of this approach is the continuum surface force (CSF) formulation for surface tension, which replaces the surface stress given by Laplace`s equation by an equivalent volume force. Here, we describe how CSF might be made more useful. Specifically, we consider a derivation of the CSF equations from a minimization of surface energy as outlined by Jacqmin. This reformulation suggests that if one eliminates the computation of curvature in terms of a unit normal vector, parasitic currents may be eliminated For this reformulation to work, it is necessary that transition region thickness be controlled. Various means for this, in addition to the one discussed by Jacqmin are discussed.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 286111
- Report Number(s):
- LA-UR--96-1706; CONF-9606210--2; ON: DE96011301
- Country of Publication:
- United States
- Language:
- English
Similar Records
Volume tracking of interfaces having surface tension in two and three dimensions
Modeling surface tension using a ghost fluid technique within a volume of fluid formulation
Convergence and accuracy of kernel-based continuum surface tension models
Conference
·
Thu Feb 29 23:00:00 EST 1996
·
OSTI ID:219267
Modeling surface tension using a ghost fluid technique within a volume of fluid formulation
Conference
·
Wed Dec 31 23:00:00 EST 2003
·
OSTI ID:977421
Convergence and accuracy of kernel-based continuum surface tension models
Conference
·
Mon Nov 30 23:00:00 EST 1998
·
OSTI ID:677171