首页> 外文期刊>Mathematical Problems in Engineering >Analysis of Nonlinear Dispersion of a Pollutant Ejected by an External Source into a Channel Flow
【24h】

Analysis of Nonlinear Dispersion of a Pollutant Ejected by an External Source into a Channel Flow

机译:外部污染源排放到通道流中污染物的非线性扩散分析

获取原文
获取原文并翻译 | 示例
           

摘要

This paper focuses on the transient analysis of nonlinear dispersion of a pollutant ejected by an external source into a laminar flow of an incompressible fluid in a channel. The influence of density variation with pollutant concentration is approximated according to the Boussinesq approximation, and the nonlinear governing equations of momentum and pollutant concentration are obtained. The problem is solved numerically using a semi-implicit finite difference method. Solutions are presented in graphical form and given in terms of fluid velocity, pollutant concentration, skin friction, and wall mass transfer rate for various parametric values. The model can be a useful tool for understanding the polluting situations of an improper discharge incident and evaluating the effects of decontaminating measures for the water body.
机译:本文着重于瞬态分析,该非线性分析是由外部源喷射到通道中不可压缩流体的层流中的污染物的非线性扩散。根据Boussinesq逼近法,估算了密度变化对污染物浓度的影响,得到了动量和污染物浓度的非线性控制方程。使用半隐式有限差分法在数值上解决了该问题。解决方案以图形形式表示,并针对各种参数值以流体速度,污染物浓度,皮肤摩擦和壁传质速率给出。该模型可以用作了解不当排放事件的污染情况和评估水体净化措施效果的有用工具。

著录项

  • 来源
    《Mathematical Problems in Engineering》 |2010年第1期|p.35.1-35.17|共17页
  • 作者

    T. Chinyoka; O. D. Makinde;

  • 作者单位

    Center for Research in Computational and Applied Mechanics, University of Cape Town,Rondebosch 7701, South Africa;

    rnFaculty of Engineering, Cape Peninsula University of Technology, P.O. Box 1906,Bellville 7535, South Africa;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号