Abstract: A novel numerical model for describing highly transient mixed flows is presented based on the Preissmann slot approach. To overcome the spurious oscillation problems caused by this approach, a numerical scheme named “random ...

Abstract: AbstractDropshafts of deep tunnel systems can entrain a large amount of air, and the resulting air–water interactions cause potential safety issues. In this study, the air–water flow characteristics along a tunnel under ...

Abstract: Abstract Numerical modeling for analyzing complex phenomena occurring under transient conditions is well established. Even then, simplifying a vehicular collision to an equivalent static load is prevalent in the structural ...

Abstract: The study of transient pressure waves in both low- and high-frequency domains has become a new research area to provide potentially high-resolution pipe fault detection methods. In previous research works, radial pressure ...

Abstract: The existing one-dimensional model is inadequate in predicting the dynamic interactions between hydraulic transients and inline air pockets in water pipelines, leading to underestimated pressure dissipation in the modeling ...

Abstract: AbstractExisting structures require to be reassessed for resilience when subjected to evolving load conditions over the years. For example, in the case of a bridge deck, a sustained trend of increase in the weight of ...

Abstract: The fix-grid method of characteristic (MOC) has been the main numerical scheme for modeling the transient pipe flows with an entrapped air pocket, where the Courant number Cr usually equals one (i.e., Cr=1) to ensure ...