Abstract
The constrained interpolation profile/cubic interpolated pseudo-particle (CIP) combined unified procedure (CCUP) method (J. Phys. Soc. Jpn. 1991; 60:2105-2108), which is based on the CIP method (J. Comput. Phys. 1985; 61:261-268; J. Comput. Phys. 1987; 70:355-372; Comput. Phys. Commun. 1991; 66:219-232; J. Comput. Phys. 2001; 169:556-593) and the adaptive Soroban grid technique (J. Comput. Phys. 2004; 194:55-77) were combined in (Comput. Mech. 2006; published online) for computation of 3D fluid-object and fluid-structure interactions in the presence of free surfaces and fluid-fluid interfaces. Although the grid system is unstructured, it still has a very simple data structure and this facilitates computational efficiency. Despite the unstructured and collocated features of the grid, the method maintains high-order accuracy and computational robustness. Furthermore, the meshless feature of the combined technique brings freedom from mesh moving and distortion issues. In this paper, the combined technique is extended to ship hydrodynamics computations. We introduce a new way of computing the advective terms to increase the efficiency in that part of the computations. This is essential in ship hydrodynamics computations where the level of grid refinement needed near the ship surface and at the free surface results in very large grid sizes. The test cases presented are a test computation with a wave-making wedge and simulation of the hydrodynamics of a container ship.
| Original language | English |
|---|---|
| Pages (from-to) | 1011-1019 |
| Number of pages | 9 |
| Journal | International Journal for Numerical Methods in Fluids |
| Volume | 54 |
| Issue number | 6-8 |
| DOIs | |
| Publication status | Published - 2007 Jul 20 |
| Externally published | Yes |
Fingerprint
Keywords
- Adaptive grid
- CCUP method
- CIP method
- Ship hydrodynamics
- Soroban grid
ASJC Scopus subject areas
- Condensed Matter Physics
- Safety, Risk, Reliability and Quality
- Applied Mathematics
- Computational Theory and Mathematics
- Computer Science Applications
- Computational Mechanics
- Mechanics of Materials
Cite this
Ship hydrodynamics computations with the CIP method based on adaptive Soroban grids. / Takizawa, Kenji; Tanizawa, Katsuji; Yabe, Takashi; Tezduyar, Tayfun E.
In: International Journal for Numerical Methods in Fluids, Vol. 54, No. 6-8, 20.07.2007, p. 1011-1019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ship hydrodynamics computations with the CIP method based on adaptive Soroban grids
AU - Takizawa, Kenji
AU - Tanizawa, Katsuji
AU - Yabe, Takashi
AU - Tezduyar, Tayfun E.
PY - 2007/7/20
Y1 - 2007/7/20
N2 - The constrained interpolation profile/cubic interpolated pseudo-particle (CIP) combined unified procedure (CCUP) method (J. Phys. Soc. Jpn. 1991; 60:2105-2108), which is based on the CIP method (J. Comput. Phys. 1985; 61:261-268; J. Comput. Phys. 1987; 70:355-372; Comput. Phys. Commun. 1991; 66:219-232; J. Comput. Phys. 2001; 169:556-593) and the adaptive Soroban grid technique (J. Comput. Phys. 2004; 194:55-77) were combined in (Comput. Mech. 2006; published online) for computation of 3D fluid-object and fluid-structure interactions in the presence of free surfaces and fluid-fluid interfaces. Although the grid system is unstructured, it still has a very simple data structure and this facilitates computational efficiency. Despite the unstructured and collocated features of the grid, the method maintains high-order accuracy and computational robustness. Furthermore, the meshless feature of the combined technique brings freedom from mesh moving and distortion issues. In this paper, the combined technique is extended to ship hydrodynamics computations. We introduce a new way of computing the advective terms to increase the efficiency in that part of the computations. This is essential in ship hydrodynamics computations where the level of grid refinement needed near the ship surface and at the free surface results in very large grid sizes. The test cases presented are a test computation with a wave-making wedge and simulation of the hydrodynamics of a container ship.
AB - The constrained interpolation profile/cubic interpolated pseudo-particle (CIP) combined unified procedure (CCUP) method (J. Phys. Soc. Jpn. 1991; 60:2105-2108), which is based on the CIP method (J. Comput. Phys. 1985; 61:261-268; J. Comput. Phys. 1987; 70:355-372; Comput. Phys. Commun. 1991; 66:219-232; J. Comput. Phys. 2001; 169:556-593) and the adaptive Soroban grid technique (J. Comput. Phys. 2004; 194:55-77) were combined in (Comput. Mech. 2006; published online) for computation of 3D fluid-object and fluid-structure interactions in the presence of free surfaces and fluid-fluid interfaces. Although the grid system is unstructured, it still has a very simple data structure and this facilitates computational efficiency. Despite the unstructured and collocated features of the grid, the method maintains high-order accuracy and computational robustness. Furthermore, the meshless feature of the combined technique brings freedom from mesh moving and distortion issues. In this paper, the combined technique is extended to ship hydrodynamics computations. We introduce a new way of computing the advective terms to increase the efficiency in that part of the computations. This is essential in ship hydrodynamics computations where the level of grid refinement needed near the ship surface and at the free surface results in very large grid sizes. The test cases presented are a test computation with a wave-making wedge and simulation of the hydrodynamics of a container ship.
KW - Adaptive grid
KW - CCUP method
KW - CIP method
KW - Ship hydrodynamics
KW - Soroban grid
UR - http://www.scopus.com/inward/record.url?scp=34347346990&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34347346990&partnerID=8YFLogxK
U2 - 10.1002/fld.1466
DO - 10.1002/fld.1466
M3 - Article
AN - SCOPUS:34347346990
VL - 54
SP - 1011
EP - 1019
JO - International Journal for Numerical Methods in Fluids
JF - International Journal for Numerical Methods in Fluids
SN - 0271-2091
IS - 6-8
ER -