...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta astronautica >Numerical analysis of convergence property of heat flux next to the wall
【24h】

Numerical analysis of convergence property of heat flux next to the wall

机译：墙旁热通量收敛特性的数值分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The chemical nonequilibrium mathematical model is used to study the effect of the first grid spacing next to the wall on numerical calculation results of the surface heat flux and the stagnation heat flux. This model is composed of two-dimensional axisymmetric Navier Stokes equations, the thermodynamic relations and the chemical reaction model. The solver is derived by implicit finite volume schemes and is validated by comparing the numerical calculation results with that in the literature. The surface heat flux and the stagnation heat flux are calculated under nine cases in which the cell Reynolds number next to the wall equals to 14.7, 7.3, 5.1, 2.9, 1.5, 1.0, 0.7, 0.5 and 0.25, respectively, and the results indicate that the surface heat flux and the stagnation heat flux gradually converge with the decrease of the cell Reynolds number next to the wall. To further verify the conclusion, the stagnation heat flux is also calculated by changing a single factor, which considers nine cases and the cell Reynolds numbers above are selected for each case, and the consistent result is obtained under nine cases.
机译：利用化学非平衡数学模型研究了壁面附近的第一个网格间距对表面热通量和停滞热通量数值计算结果的影响。该模型由二维轴对称Navier Stokes方程，热力学关系和化学反应模型组成。该求解器是通过隐式有限体积方案派生的，并通过将数值计算结果与文献中的计算结果进行比较进行了验证。在九种情况下计算了表面热通量和停滞热通量，其中九种情况是壁旁的单元雷诺数分别等于14.7、7.3、5.1、2.9、1.5、1.0、0.7、0.5和0.25，结果表明表面热通量和停滞热通量随着壁旁雷诺数的减少而逐渐收敛。为了进一步验证结论，还通过更改单个因子来计算停滞热通量，其中考虑了9种情况，并为每种情况选择了上面的单元雷诺数，在9种情况下获得了一致的结果。

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