A parallel, volume-tracking algorithm for unstructured meshes Page: 4 of 11
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A Parallel, Volume-Tracking Algorithm for Unstructured Meshes
S. J. Mossoa, B. K. Swartzb, D. B. Kothec and R. C. Ferrelld
aHydrodynamic Methods, Los Alamos National Laboratory, MS F663,
Los Alamos, New Mexico 87545 USA
bMathematical Modeling and Analysis, Los Alamos National Laboratory,
MS B284, Los Alamos, New Mexico 87545 USA
C Fluid Dynamics, Los Alamos National Laboratory, MS B216, Los Alamos,
New Mexico, 87545 USA
dCambridge Power Computing Associates, Cambridge, Massachusetts
Recent enhancements to multidimensional volume-tracking algorithms are pre-
sented. Illustrations in two dimensions are given. The improvements include new,
local algorithms for interface normal constructions and a new full remapping algo-
rithm for time integration. These methods are used on structured and unstruc-
Many diverse areas of industry benefit from the use of volume of fluid methods to
predict the movement of materials. Casting is a common method of part fabrica-
tion. The accurate prediction of the casting process is pivotal to industry. Mold
design and casting is currently considered an art by industry. It typically involves
many trial mold designs, and the rejection of defective parts is costly. Failure of
cast parts, because residual stresses reduce the part's strength, can be cata-
strophic. Cast parts should have precise geometric details that reduce or elimi-
nate the need for machining after casting. Volume of fluid codes will help
designers predict how the molten metal fills a mold and where any trapped voids
remain. Prediction of defects due to thermal contraction or expansion will elimi-
nate defective, trial mold designs and speed the parts to market with fewer rejec-
tions. Increasing the predictability and therefore the accuracy of the casting
process will reduce the "art" that is involved in mold design and parts casting.
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Mosso, S.J.; Swartz, B.K.; Kothe, D.B. & Ferrell, R.C. A parallel, volume-tracking algorithm for unstructured meshes, article, October 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc685227/m1/4/: accessed December 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.