TY - JOUR
T1 - Marker-Based, 3-D Adaptive Cartesian Grid Method for Multiphase Flow Around Irregular Geometries
AU - Eray Uzgoren, Jaeheon Sim & Wei Shyy
JO - Communications in Computational Physics
VL - 1
SP - 1
EP - 41
PY - 2009
DA - 2009/05
SN - 5
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/cicp/7722.html
KW - 
AB - <p style="text-align: justify;">Computational simulations of multiphase flow are challenging because
many practical applications require adequate resolution of not only interfacial physics
associated with moving boundaries with possible topological changes, but also around
three-dimensional, irregular solid geometries. In this paper, we highlight recent efforts
made in simulating multiphase fluid dynamics around complex geometries, based on
an Eulerian-Lagrangian framework. The approach uses two independent but related
grid layouts to track the interfacial and solid boundary conditions, and is capable of
capturing interfacial as well as multiphase dynamics. In particular, the stationary
Cartesian grid with time dependent, local adaptive refinement is utilized to handle
the computation of the transport equations, while the interface shape and movement
are treated by marker-based triangulated surface meshes which freely move and interact with the Cartesian grid. The markers are also used to identify the location of
solid boundaries and enforce the no-slip condition there. Issues related to the contact
line treatment, topological changes of multiphase fronts during merger or breakup of
objects, and necessary data structures and solution techniques are also highlighted. Selected test cases including spacecraft fuel tank flow management and liquid plug flow
dynamics are presented.</p>