...
首页> 外文期刊>Applied Mathematical Modelling >Non-local effects and size-dependent properties in Stefan problems with Newton cooling
【24h】

Non-local effects and size-dependent properties in Stefan problems with Newton cooling

机译:牛顿冷却的Stefan问题中的非局部效应和尺寸依赖性

获取原文
获取原文并翻译 | 示例
           

摘要

We model the growth of a one-dimensional solid by considering a modified Fourier law with a size-dependent effective thermal conductivity and a Newton cooling condition at the interface between the solid and the cold environment. In the limit of a large Biot number, this condition becomes the commonly used fixed-temperature condition. It is shown that in practice the size of this non-dimensional number is very small. We study the effect of a small Biot number on the solidification process with numerical and asymptotic solution methods. The study indicates that non-local effects become less important as the Biot number decreases. (C) 2019 Elsevier Inc. All rights reserved.
机译:我们通过考虑修正的傅立叶定律,对一维固体的生长进行建模,该修正的傅立叶定律具有与尺寸有关的有效热导率,并且在固体和寒冷环境之间的界面处存在牛顿冷却条件。在大比奥数的极限下,该条件成为常用的固定温度条件。结果表明,实际上该无量纲数的大小很小。我们用数值和渐近求解方法研究了小比奥数对凝固过程的影响。研究表明,随着比奥特数的减少,非局部效应变得不那么重要了。 (C)2019 Elsevier Inc.保留所有权利。

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