TY - JOUR

T1 - Shallow water modeling of wave–structure interaction over irregular bottom

AU - Gusev, Oleg Igorevich

AU - Khakimzyanov, Gayaz Salimovich

AU - Skiba, Vasiliy Savelievich

AU - Chubarov, Leonid Borisovich

N1 - The work was funded by the Russian Science Foundation (project No. 21-71-00127).

PY - 2023/1/1

Y1 - 2023/1/1

N2 - This paper describes the results from a numerical simulation of long surface waves interaction with fixed and partially immersed structure located over irregular bottom. The topic is connected with risk of critical wave impact on structures placed in the coastal waters of seas and oceans. The wave–structure interaction is simulated within the framework of a hierarchy of mathematical models, including the model of potential flows of an ideal fluid, a fully nonlinear dispersive and dispersionless shallow water models. The numerical algorithm for the dispersive model is described in detail. The obtained results show that rectangular cutout in the structure bottom reduces the amplitude of the reflected wave and increases that of the transmitted one; the basin bottom irregularity plays the most important role when located directly under the body. The protrusion behind the body may slightly decrease the wave force, and it significantly increases the force at other locations. Generally, the results obtained by the dispersive model correspond well with those of potential model, while the dispersionless model often significantly overestimates the wave force and amplitude of the reflected wave.

AB - This paper describes the results from a numerical simulation of long surface waves interaction with fixed and partially immersed structure located over irregular bottom. The topic is connected with risk of critical wave impact on structures placed in the coastal waters of seas and oceans. The wave–structure interaction is simulated within the framework of a hierarchy of mathematical models, including the model of potential flows of an ideal fluid, a fully nonlinear dispersive and dispersionless shallow water models. The numerical algorithm for the dispersive model is described in detail. The obtained results show that rectangular cutout in the structure bottom reduces the amplitude of the reflected wave and increases that of the transmitted one; the basin bottom irregularity plays the most important role when located directly under the body. The protrusion behind the body may slightly decrease the wave force, and it significantly increases the force at other locations. Generally, the results obtained by the dispersive model correspond well with those of potential model, while the dispersionless model often significantly overestimates the wave force and amplitude of the reflected wave.

KW - Irregular bottom

KW - Long surface wave

KW - Nonlinear dispersion

KW - Numerical algorithm

KW - Partially immersed structure

KW - Shallow water

UR - https://www.scopus.com/inward/record.url?eid=2-s2.0-85146257865&partnerID=40&md5=21a1bee99055db35bcf270da6a54b4f1

UR - https://elibrary.ru/item.asp?id=49895062

UR - https://www.mendeley.com/catalogue/b9109709-dbdb-3d18-8250-e3b7063cb95b/

U2 - 10.1016/j.oceaneng.2022.113284

DO - 10.1016/j.oceaneng.2022.113284

M3 - Article

VL - 267

JO - Ocean Engineering

JF - Ocean Engineering

SN - 0029-8018

M1 - 113284

ER -