TY - JOUR
T1 - Flow Around a Pile Under Highly Non-linear Waves Using an Unstructured Finite-Volume Technique
AU - Zhang, Wei
AU - Uh Zapata, Miguel
AU - Huang, Ziheng
AU - Nguyen, Kim Dan
AU - Pham Van Bang, Damien
N1 - Publisher Copyright:
© 2024 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2023
Y1 - 2023
N2 - This study has coupled a wave generating model with the existing in-house 3D Large Eddy Simulation (LES) hydrodynamic model. The primary focus is to simulate the hydrodynamics around a circular cylinder under non-linear waves. To accurately capture the behaviour of non-linear waves, a relaxation method is implemented on an unstructured grid, and its effectiveness is examined in a numerical wave tank with a vertical cylinder. To validate the accuracy of the proposed model, we compare the simulation results with experimental data, specifically analysing the transmission of the wave surface across the cylinder and examining the phased-averaged pressure distribution. The simulations also consider the shedding of lee-wake vortices, and the results are extensively discussed. Significantly, this paper represents the first known investigation of hydrodynamics under non-linear waves using the large-eddy simulation technique on unstructured grids. This approach opens up new possibilities for studying complex wave-structure interactions with improved accuracy and realism.
AB - This study has coupled a wave generating model with the existing in-house 3D Large Eddy Simulation (LES) hydrodynamic model. The primary focus is to simulate the hydrodynamics around a circular cylinder under non-linear waves. To accurately capture the behaviour of non-linear waves, a relaxation method is implemented on an unstructured grid, and its effectiveness is examined in a numerical wave tank with a vertical cylinder. To validate the accuracy of the proposed model, we compare the simulation results with experimental data, specifically analysing the transmission of the wave surface across the cylinder and examining the phased-averaged pressure distribution. The simulations also consider the shedding of lee-wake vortices, and the results are extensively discussed. Significantly, this paper represents the first known investigation of hydrodynamics under non-linear waves using the large-eddy simulation technique on unstructured grids. This approach opens up new possibilities for studying complex wave-structure interactions with improved accuracy and realism.
KW - inphase-averaged pressure
KW - Non-linear waves
KW - relaxation method
KW - unstructured grids
UR - http://www.scopus.com/inward/record.url?scp=85194564010&partnerID=8YFLogxK
U2 - 10.1080/10618562.2024.2351897
DO - 10.1080/10618562.2024.2351897
M3 - Article
AN - SCOPUS:85194564010
SN - 1061-8562
VL - 37
SP - 693
EP - 710
JO - International Journal of Computational Fluid Dynamics
JF - International Journal of Computational Fluid Dynamics
IS - 8
ER -