3D Numerical Modeling of Wood Transport and Bridge Clogging

River managers are aware that wood-clogging mechanisms frequently trigger damage-causing processes like structural damages at bridges, sudden channel outbursts, and occasionally, major displacements of the water course. Blockage may cause a strong reduction in the flow rate through the contracted opening and therefore a strong increase in upstream water levels which may lead to flooding or nearby urbanized areas. To successfully mitigate flood risks related to the transport of large wood (LW), river managers need a guideline for an accurate and reliable risk assessment procedure and the design of river sections and bridges that are endangered of LW clogging.

in recent years, comprehensive research dealing with the triggers of wood-clogging mechanisms at bridges and the corresponding impacts on flood risk was occurred experimentally.In order to Provide a better understanding of wood transport in river and bridge clogging processes this paper has been focused on wood transport dynamics, and mechanism of bridge clogging numerically. was used to simulate wood transport.By applying a 3d numerical model , the available knowledge on the influence of geometrical, hydraulic, and wood-related parameters on LW clogging probabilities is processed in a generalized form. Based on the Numerical modeling results a practice-oriented guideline that supports the assessment of flood risk induced by LW clogging, is presented.