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Title: Coupling methods between finite element-based Boussinesq-type wave and particle-based free-surface flow models [Coupling methods between finite element-based Boussinesq-typewave and particle-based free-surface flow models]

Journal Article · · International Journal for Numerical Methods in Fluids
DOI:https://doi.org/10.1002/fld.4516· OSTI ID:1468905
ORCiD logo [1]; ORCiD logo [2];  [3];  [1]
  1. Univ. of Tokyo (Japan). Dept. of Systems Innovations
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate
  3. Univ. of Notre Dame, IN (United States). Dept. of Civil & Environmental Engineering & Earth Sciences
+ Show Author Affiliations

Summary We develop one‐way coupling methods between a Boussinesq‐type wave model based on the discontinuous Galerkin finite element method and a free‐surface flow model based on a mesh‐free particle method to strike a balance between accuracy and computational cost. In our proposed model, computation of the wave model in the global domain is conducted first, and the nonconstant velocity profiles in the vertical direction are reproduced by using its results. Computation of the free‐surface flow is performed in a local domain included within the global domain with interface boundaries that move along the reproduced velocity field in a Lagrangian fashion. To represent the moving interfaces, we used a polygon wall boundary model for mesh‐free particle methods. Verification and validation tests of our proposed model are performed, and results obtained by the model are compared with theoretical values and experimental results to show its accuracy and applicability.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1468905
Alternate ID(s):
OSTI ID: 1455072
Report Number(s):
LLNL-JRNL-738013; 891221
Journal Information:
International Journal for Numerical Methods in Fluids, Vol. 88, Issue 3; ISSN 0271-2091
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Figures / Tables (23)

Figure 1(p. 7)figure Figure 1
Figure 2(p. 13)figure Figure 2
Figure 3(p. 14)figure Figure 3
Figure 4(p. 16)figure Figure 4
Table 1(p. 16)table Table 1
Figure 5(p. 18)figure Figure 5
Figure 6(p. 18)figure Figure 6
Figure 7(p. 19)figure Figure 7
Figure 8(p. 19)figure Figure 8
Figure 9(p. 20)figure Figure 9
Figure 10(p. 22)figure Figure 10
Table 2(p. 22)table Table 2
Figure 11(p. 23)figure Figure 11
Figure 12(p. 24)figure Figure 12
Figure 13(p. 25)figure Figure 13
Figure 14(p. 26)figure Figure 14
Figure 15(p. 27)figure Figure 15
Figure 16(p. 28)figure Figure 16
Table 3(p. 29)table Table 3
Figure 17(p. 30)figure Figure 17
Figure 18(p. 30)figure Figure 18
Figure 19(p. 35)figure Figure 19
Figure 20(p. 36)figure Figure 20

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