Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the ASME 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2016) |
| Number of pages | 8 |
| Publisher | American Society of Mechanical Engineers |
| Publication date | 2016 |
| Article number | OMAE2016-54429 |
| ISBN (Electronic) | 978-0-7918-4993-4 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) - Busan, Korea, Republic of Duration: 19 Jun 2016 → 24 Jun 2016 |
Conference
| Conference | ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) |
|---|---|
| Country | Korea, Republic of |
| City | Busan |
| Period | 19/06/2016 → 24/06/2016 |
Cite this
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Computation of Added Mass and Damping Coefficients of a Horizontal Circular Cylinder in Open Foam. / Chen, Hao; Christensen, Erik Damgaard.
Proceedings of the ASME 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2016). American Society of Mechanical Engineers, 2016. OMAE2016-54429.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
TY - GEN
T1 - Computation of Added Mass and Damping Coefficients of a Horizontal Circular Cylinder in Open Foam
AU - Chen, Hao
AU - Christensen, Erik Damgaard
PY - 2016
Y1 - 2016
N2 - This paper presents numerical computation of added massand damping coefficients of a slender horizontal cylinder in thefree surface zone, which typically serves as a fish cage floater. A fully viscous two phase flow solver in OpenFOAM was employed in the numerical computation. The purpose was to validate the capability of this solver and dynamic mesh functionality. A two dimensional numerical wave tank was set up, and two wave relaxation zones were used to reduce the size of the computational domain. Harmonic forced oscillations of the cylinder were performed at different frequencies and amplitudes. The mesh at free surface zone was refined based on the radiated wave heights at different oscillation frequencies in order to properly resolve the radiated waves. The result shows that in most frequency ranges, the numerical computation agreed well with the experimental data and analytical solution. However at low frequency range for added mass coefficient in heave motion, deviations were observed, and it was due to the effect of finite water depth. In addition for sway motion at high frequency range, the damping coefficient was underestimated comparing with analytical solution. This was believed to be as a result of high steepness of the radiated waves.
AB - This paper presents numerical computation of added massand damping coefficients of a slender horizontal cylinder in thefree surface zone, which typically serves as a fish cage floater. A fully viscous two phase flow solver in OpenFOAM was employed in the numerical computation. The purpose was to validate the capability of this solver and dynamic mesh functionality. A two dimensional numerical wave tank was set up, and two wave relaxation zones were used to reduce the size of the computational domain. Harmonic forced oscillations of the cylinder were performed at different frequencies and amplitudes. The mesh at free surface zone was refined based on the radiated wave heights at different oscillation frequencies in order to properly resolve the radiated waves. The result shows that in most frequency ranges, the numerical computation agreed well with the experimental data and analytical solution. However at low frequency range for added mass coefficient in heave motion, deviations were observed, and it was due to the effect of finite water depth. In addition for sway motion at high frequency range, the damping coefficient was underestimated comparing with analytical solution. This was believed to be as a result of high steepness of the radiated waves.
U2 - 10.1115/OMAE2016-54429
DO - 10.1115/OMAE2016-54429
M3 - Article in proceedings
BT - Proceedings of the ASME 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2016)
PB - American Society of Mechanical Engineers
ER -