3-D Numerical Investigation on Effect of Flow Structure and Water Level on Vegetation Distribution in an Open Channel

ABSTRACT Jeon, H.S.; Hur, D.S.; Park, J.R.; Yoon, J.S.; Kim, I.H., and Lee, W.D., 2018. 3-D numerical investigation on effect of flow structure and water level on vegetation distribution in an open channel. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 71–75. Coconut Creek (Florida), ISSN 0749-0208. The in-stream vegetation is recognized to have significant ecological and aesthetic importance in managing floods and restoring rivers. However, it also disturbs the velocity of running fluid by increasing the resistance of flow, and raises the water level because of reduced discharge area at times of flood. Therefore, it is very important to study the hydraulic characteristics of vegetation distribution, and this study carried out a numeric simulation for quantitative and qualitative analysis. The simulation applied Navier-Stokes solver based on PBM (Porous Body...