首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Characteristic stabilized finite element method for non-stationary conduction-convection problems
【24h】

Characteristic stabilized finite element method for non-stationary conduction-convection problems

机译:非静止导电对流问题的特征稳定有限元方法

获取原文
获取原文并翻译 | 示例
           

摘要

Purpose - This paper aims to propose a characteristic stabilized finite element method for non-stationary conduction-convection problems. Design/methodology/approach - To avoid difficulty caused by the trilinear term, the authors use the characteristic method to deal with the time derivative term and the advection term. The space discretization adopts the low-order triples (i.e. P_1-P_1-P_1 and P_1-P_0-P_1 triples). As low-order triples do not satisfy inf-sup condition, the authors use the stability technique to overcome this flaw. Findings - The stability and the convergence analysis shows that the method is stable and has optimal-order error estimates. Originality/value - Numerical experiments confirm the theoretical analysis and illustrate that the authors' method is highly effective and reliable, and consumes less CPU time.
机译:目的 - 本文旨在提出用于非平稳导电对流问题的特征稳定的有限元方法。设计/方法/方法 - 为了避免由三线性术语造成的困难,作者使用特征方法处理时间衍生项和平流术语。空间离散化采用低阶三元(即P_1-P_1-P_1和P_1-P_0-P_1三倍)。由于低阶三元组不满足INF-SUP条件,作者使用稳定技术来克服这一缺陷。调查结果 - 稳定性和收敛分析表明该方法稳定,具有最佳序列误差估计。最初/值 - 数值实验证实了理论分析,并说明作者的方法非常有效可靠,并且消耗较少的CPU时间。

著录项

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