在智能手机广泛使用和应用与社会生活的各个方面的今天,手机RCS(Rich Communication Suite)功能应运而生,它的出现将会改变大家对手机的使用习惯,进而改变社会生活的方方面。在广播电视行业全面跨入“融媒体”时代的当前,能否抓住这个...在智能手机广泛使用和应用与社会生活的各个方面的今天,手机RCS(Rich Communication Suite)功能应运而生,它的出现将会改变大家对手机的使用习惯,进而改变社会生活的方方面。在广播电视行业全面跨入“融媒体”时代的当前,能否抓住这个传统智能手机和APP的大变革尤为关键。展开更多
The authors propose a numerical algorithm for the two-dimensional Navier-Stokes equations written in stream function-vorticity formulation. The total time derivative term is treated with a first order characteristics ...The authors propose a numerical algorithm for the two-dimensional Navier-Stokes equations written in stream function-vorticity formulation. The total time derivative term is treated with a first order characteristics method. The space approximation is based on a piecewise continuous finite element method. The proposed algorithm is used to simulate the mechanical aeration process in lakes. Such process is used to combat the degradation of the water quality due to the eutrophication phenomena. For this application high computing facilities and capacities are required. In order to optimize the computing time and make possible the simulation of real applications, the authors propose a parallel implementation of the numerical algorithm. The parallelization technique is performed using the Message Passing Interface. The efficiency of the proposed numerical algorithm is illustrated by some numerical results.展开更多
文摘The authors propose a numerical algorithm for the two-dimensional Navier-Stokes equations written in stream function-vorticity formulation. The total time derivative term is treated with a first order characteristics method. The space approximation is based on a piecewise continuous finite element method. The proposed algorithm is used to simulate the mechanical aeration process in lakes. Such process is used to combat the degradation of the water quality due to the eutrophication phenomena. For this application high computing facilities and capacities are required. In order to optimize the computing time and make possible the simulation of real applications, the authors propose a parallel implementation of the numerical algorithm. The parallelization technique is performed using the Message Passing Interface. The efficiency of the proposed numerical algorithm is illustrated by some numerical results.
