The current two dimensional numerical study is applied to the deck section of the Great Belt East Bridge. The main goal is to assess the OpenFOAM capabilities to predict vortical structures around this quasibluff body. A Reynolds number based on deck width of 7 · 10^4 makes both unsteady laminar and turbulent simulation approach feasible for flow prediction. Aerodynamic coefficients as well as velocity defect and pressure distribution along the walls are investigated for assessment. In addition special attention has been paid to the laminar separation bubble structure, its effect on the vortex shedding phenomenon and the laminar-turbulent transition if surface gets modified where flow separates.
Campitelli, G., Krastev, V.k., Huebsch, W., Gautam, M. (2013). Two dimensional numerical study of the flow over a bridge deck with the open source CFD tool OpenFOAM®. In 43rd Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, Inc. [10.2514/6.2013-3212].
Two dimensional numerical study of the flow over a bridge deck with the open source CFD tool OpenFOAM®
Krastev V. K.;
2013-06-22
Abstract
The current two dimensional numerical study is applied to the deck section of the Great Belt East Bridge. The main goal is to assess the OpenFOAM capabilities to predict vortical structures around this quasibluff body. A Reynolds number based on deck width of 7 · 10^4 makes both unsteady laminar and turbulent simulation approach feasible for flow prediction. Aerodynamic coefficients as well as velocity defect and pressure distribution along the walls are investigated for assessment. In addition special attention has been paid to the laminar separation bubble structure, its effect on the vortex shedding phenomenon and the laminar-turbulent transition if surface gets modified where flow separates.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
