AUTHOR=Lou Sha , Chen Xiaolan , Zhou Shengyu , Ma Gangfeng , Liu Shuguang , Radnaeva Larisa Dorzhievna , Nikitina Elena , Fedorova Irina Viktorovna 

TITLE=Numerical study of sediment suspension affected by rigid cylinders under unidirectional and combined wave–current flows

JOURNAL=Frontiers in Marine Science

VOLUME=Volume 10 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1105112

DOI=10.3389/fmars.2023.1105112

ISSN=2296-7745

ABSTRACT=An improved formulation for incipient sediment suspension considering the effect of cylinder density (i.e., solid volume fraction) is employed to simulate the bottom sediment flux in the flow with cylinders. The proposed model is calibrated using laboratory measurements under unidirectional and combined wave-current flows in previous studies (Chen et al., 2020; Lou et al., 2022), and validated using experimental datasets under unidirectional flows in Lu (2008). It is proved that the effects of cylinders on sediment suspension can be accounted for through a modified critical Shields number, and the proposed model is capable of simulating sediment suspension under both unidirectional and combined wave–current flows reasonably well with the model skills and the coefficients of determination greater than 0.8.