© 2015 Taylor & Francis Group, London. This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov–Galerkin finite element method. Three cases were modeled with 90, 45 and 0 degree angles of attack respectively at a constant pipe Reynolds number of 103. Bed shear stress amplification patterns were first revealed and found to be in good agreement with onset scour profiles from physical modeling. Then the responsible scour-inducing flow features were visualized comprising horseshoe vortices, lee-wake vortices and streamline deflections.
|Title of host publication||Scour and Erosion - Proceedings of the 7th International Conference on Scour and Erosion, ICSE 2014|
|Place of Publication||United Kingdom|
|Publication status||Published - 2015|
|Event||7th International Conference on Scour and Erosion - Perth, Australia|
Duration: 2 Dec 2014 → 4 Dec 2014
|Conference||7th International Conference on Scour and Erosion|
|Period||2/12/14 → 4/12/14|