TY - GEN
T1 - Fast integral equation methods for fully nonlinear water wave modeling
AU - Harris, Jeffrey C.
AU - Dombre, Emmanuel
AU - Benoit, Michel
AU - Grilli, Stephan T.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - We present the development and validation of an efficient numerical wave tank (NWT), which solves for fully nonlinear potential flow in three dimensions. This boundary element approach is based on a variation of the wave model of Grilli et al., which has been well validated. The mixed Eulerian-Lagrangian time updating is based on a second-order Taylor series expansion. In order to solve problems with complex geometries, we reformulate the model to use a 3D unstructured triangular mesh of the boundaries, and apply the fast multipole method implementation, ExaFMM, in parallel, to make the use of large grids practical. We demonstrate the various issues related to performance, comparing against the existing higher-order boundary element NWT on a structured mesh, as well as demonstrating the capabilities of this modified approach.
AB - We present the development and validation of an efficient numerical wave tank (NWT), which solves for fully nonlinear potential flow in three dimensions. This boundary element approach is based on a variation of the wave model of Grilli et al., which has been well validated. The mixed Eulerian-Lagrangian time updating is based on a second-order Taylor series expansion. In order to solve problems with complex geometries, we reformulate the model to use a 3D unstructured triangular mesh of the boundaries, and apply the fast multipole method implementation, ExaFMM, in parallel, to make the use of large grids practical. We demonstrate the various issues related to performance, comparing against the existing higher-order boundary element NWT on a structured mesh, as well as demonstrating the capabilities of this modified approach.
KW - Fast multipole method
KW - Numerical wave tank
KW - Parallel processing
UR - https://www.scopus.com/pages/publications/84906902871
M3 - Conference contribution
AN - SCOPUS:84906902871
SN - 9781880653913
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 583
EP - 590
BT - Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
PB - International Society of Offshore and Polar Engineers
T2 - 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Y2 - 15 June 2014 through 20 June 2014
ER -