TY - GEN
T1 - An improved immersed boundary method for simulating wave-structure interactions
AU - Lin, Chun Yuan
AU - Huang, Ching-Jer
AU - Chen, Chih Hsin
PY - 2010/9/10
Y1 - 2010/9/10
N2 - In this study a numerical scheme was proposed to improve the immersed boundary method introduced by Mohd-Yusof (1997). The mass correction was incorporated into the solution algorithm to maintain the incompressible condition which was the most critical part of the immersed boundary method. To represent the arbitrary solid boundary and the complex free surface evolution, both the traditional level set method (Osher and Sethian, 1988) and the hybrid particle level set method (Enright et al., 2002) were applied in the present scheme. Consequently, the desired boundary conditions for both pressure and velocity fields could be imposed simply and accurately on either the solid boundary or the free surface via the advantage of the level set method. A series of numerical experiments were conducted to present the validity and capability of the present numerical scheme, including a uniform flow passing through a cylinder and water waves propagating over a submerged trapezoidal breakwater. The comparisons between present numerical results and experiment data show that very good agreement was achieved for all studied cases.
AB - In this study a numerical scheme was proposed to improve the immersed boundary method introduced by Mohd-Yusof (1997). The mass correction was incorporated into the solution algorithm to maintain the incompressible condition which was the most critical part of the immersed boundary method. To represent the arbitrary solid boundary and the complex free surface evolution, both the traditional level set method (Osher and Sethian, 1988) and the hybrid particle level set method (Enright et al., 2002) were applied in the present scheme. Consequently, the desired boundary conditions for both pressure and velocity fields could be imposed simply and accurately on either the solid boundary or the free surface via the advantage of the level set method. A series of numerical experiments were conducted to present the validity and capability of the present numerical scheme, including a uniform flow passing through a cylinder and water waves propagating over a submerged trapezoidal breakwater. The comparisons between present numerical results and experiment data show that very good agreement was achieved for all studied cases.
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M3 - Conference contribution
AN - SCOPUS:77956300242
SN - 9781880653777
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 723
EP - 728
BT - Proceedings of the 20th (2010) International Offshore and Polar Engineering Conference, ISOPE-2010
T2 - 20th International Offshore and Polar Engineering Conference, ISOPE-2010
Y2 - 20 June 2010 through 25 June 2010
ER -