15 research outputs found
Refinement of a Depth Averaged Flow Model in Curved Channel in Generalized Curvilinear Coordinate System
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv
Numerical simulation of river channel processes with bank erosion in steep curved channel
River morphodynamics and sediment transportRiver morphology and morphodynamic
Comparison of Epirubicin-Iodized Oil Suspension and Emulsion for Transcatheter Arterial Chemoembolization in VX2 Tumor
To compare the antitumor efficacy and safety of transcatheter arterial chemoembolization (TACE) by epirubicin suspension (epirubicin suspension: epirubicin-iodized oil mixture without solution) to that by epirubicin emulsion (epirubicin emulsion: epirubicin-iodized oil mixture with solution), the efficacy of treatment by administration of either an epirubicin suspension or emulsion was examined in an animal model. Changes in plasma epirubicin concentration were compared over 24 h immediately after treatment, and enhanced ultrasonographic and histopathological analysis subsequently conducted 7 days after treatment to determine the growth ratio and proportion of viable tumor cells. The growth ratio and proportion of viable tumor cells were found to be significantly lower in the suspension group than in the emulsion group while the plasma epirubicin concentration was found to be significantly higher in the suspension group than in the emulsion group. These results indicate that administration of an epirubicin suspension is a superior form of TACE compared to that of administration of an epirubicin emulsion
Numerical modelling of simultaneous overtopping and seepage flows with application to dike breaching
Computations of suspended sediment transport in a shallow side-cavity using depth-averaged 2D models with effects of secondary currents
NUMERICAL SIMULATION OF DIKE EROSION PROCESS DUE TO OVERTOPPING FLOW
Dike failures due to overtopping flows have recently occurred during floods. It is of great importance to understand the mechanism of dike failure processes and to predict dike erosion accurately for disaster mitigation. In this study, a numerical model to simulate dike breaching is developed based on a three-dimensional flow model in porous media and density function methods, and a non-equilibrium sediment transport model. Infiltration into a dike is also considered in the simulation. First, a numerical model is applied to flows over a solid embankment in order to validate the flow model. Then, dike erosion processes are simulated. Compared with the previous experimental results, it is shown that the numerical model can reproduce overflows and dike failure processes reasonably
Development and application of numerical method in open channel flow in boundary fitted coordinate system with density function method
Numerical simulation of dike erosion process due to overtopping flow
Dike failures due to overtopping flows have recently occurred during floods. It is of great importance to understand the mechanism of dike failure processes and to predict dike erosion accurately for disaster mitigation. In this study, a numerical model to simulate dike breaching is developed based on a three-dimensional flow model in porous media and density function methods, and a non-equilibrium sediment transport model. Infiltration into a dike is also considered in the simulation. First, a numerical model is applied to flows over a solid embankment in order to validate the flow model. Then, dike erosion processes are simulated. Compared with the previous experimental results, it is shown that the numerical model can reproduce overflows and dike failure processes reasonably