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In this paper, a two-phase numerical model is developed to study the effect of the gas phase in problems of wave attacking deck. The model is based on weakly compressible smoothed particles hydrodynamics (WCSPH) method, and is implemented in C++ and CUDA language to running on GPUs starting from DualSPHysics. Surface tension is considered by incorporating the surface tension force into the momentum...
Certain environmental factor's change leads to the imbalance of marine environmental system. The engineering cumulative impact wasn't considered within the environmental impact assessment, so the environmental impact results are not completely. In this paper, an integrated cumulative impact analysis and assessment of hydrodynamic and water environment by the great marine engineering of Hebei and Tianjin...
With the development of coastal region in Tianjin Binhai new district, environmental pollution, exhaustion of resources and ecological hazards are aggravated continuously. So for efficient utilization of resources and realization of sustainable development, study on the carrying capacity assessment of coastal region is the key means for guiding the management. This paper presents a Data-Driven Model...
An accurate and highly efficient semi-implicit three-dimensional tidal model is developed and has been applied to real area. In the model, the pressure gradient in the momentum equations and the velocities in the vertically integrated continuity equations are discretized using the θ-method, the vertical mixing terms are discretized implicitly and all the other terms are discretized explicitly. The...
Marine water quality model is complicated because of its multi-parameter and multi-response characteristic. In this paper, a new method based on data-driven model (DDM) is developed to retrieve the value of model parameters for model calibration. All training data are calculated by numerical water quality model from results of multi-parameter matching design cases. The basic idea is to find out the...
With the development of the ocean economy exploitation, study on carrying capacity and its dynamic changes are the key methods for all-sided and correct understanding of the relationship between human being and ocean, for scientific management or utilization of ocean resources and realization of ocean sustainable development. This paper presents a Data-Driven Model (DDM) to establish carrying capacity...
One of major difficulties with numerical tidal models is accurate inversion of open boundary conditions. A data-driven model based on artificial neural network is developed to retrieve open boundary values. All training data are calculated by numerical tidal model, so the tidal physics are not disturbed. The basic idea is to find out the relationship between open boundary values and the values of...
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