Author(s): David R. Fuhrman
Linked Author(s):
Keywords: Scour; Computational fluid dynamics; Hydraulic structures; OpenFOAM; sediMorph
Abstract: Highlights spanning the authors’ past decade of research in simulating scour processes around hydraulic structures using computational fluid dynamics (CFD) models will be presented. Simulations are based on the fully-coupled hydrodynamic and morphodynamic “sediMorph” model, developed in the OpenFOAM environment by Jacobsen et al. (2014). Simulated two-dimensional scour beneath submerged pipelines will cover: (1) scour induced by both currents and waves, (2) backfilling following changes in wave climate (Fuhrman et al. 2014), (3) formulation of a generalized scour time scale for combined wave-plus-current conditions (Larsen et al. 2016), (4) scour beneath pipelines in tandem (Li et al. 2020a), as well as (5) effects of upward seepage (Li et al. 2020b). Simulated three-dimensional scour around monopiles will likewise cover: (1) scour induced by steady currents (Baykal et al. 2015), (2) scour induced by waves (Baykal et al. 2017, see the example in Figure 1), and (3) tsunami-induced scour (Larsen et al. 2017). Emphasis will be placed on new process knowledge gained from the simulations described above.
Year: 2024