A general circulation model using a full-Galerkin method is developed for the simulation of atmospheric climate and variability. Two variants of the Galerkin method, the spectral-transform method and the finite-element method, are used in this model for the horizontal and vertical...

Two laterally averaged, two-dimensional models; TISAT and CE-QUAL-W2, have been applied to the Swan River Estuary. Both models use a finite difference scheme. The time step in the TISAT model is restricted by Courant–Friedrichs–Lewy (CFL) criterion, but this limitation is overcome in...

This paper proposed a fast synthetic genetic algorithm (FSGA). The algorithm has faster convergence speed and higher computation precision, and the number of individuals and populations decreased, respectively. To overcome long training time of back propagation (BP) algorithm, this paper...

This paper is concerned with the solution of the principal component analysis (PCA) problem with the aid of neural networks (NNs). After an overview of the basic NN-based PCA concepts and a listing of the available algorithms, two criteria for evaluating PCA NN algorithms are proposed. Then, a...

The paper deals with the verification of three pipeline models: the non-linear distributed parameters model, the linear distributed parameter model and the linear lumped parameters model. All the models were comparatively verified on the basis of the measurements on a real pipeline.

The dynamical characteristics of continuous-time additive Hopfield-type neural networks are studied. Sufficient conditions are obtained for exponentially stable encoding of temporally uniform external stimuli. Discrete-time analogues of the corresponding continuous-time models are formulated and...

The performance analysis of network architecture is a very crucial factor in designing multiprocessor systems. Very often, simulation is the only feasible method because of the nature of the problem and because analytical techniques become too difficult to handle. However, simulation can be...

In this paper, we present the modeling of the work water section of a power plant group. The mathematical model is based on the Saint–Venant equations and the nonlinear partial differential equations for the one-dimensional pipe flow. The model has to deal with a special coupling between an...

We consider an explicit finite element approximation of a model for phase separation in a ternary mixture and describe some numerical experiments in two space dimensions.

Four typical finite volume methods, the Roe-MUSCL, Roe-Upwind, HLL-MUSCL and composite methods are implemented on unstructured triangular meshes. Two typical problems of discontinuous solutions of 2D shallow water, the 2D dam break problem and oblique hydraulic jump problem, are solved by the...