...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Modern Applied Science >Prediction of Convective Heat Transfer Coefficient and Temperature Distribution of Air-Conditioned Spaces Using Numerical Simulation
【24h】

Prediction of Convective Heat Transfer Coefficient and Temperature Distribution of Air-Conditioned Spaces Using Numerical Simulation

机译：基于数值模拟的空调空间对流换热系数和温度分布预测

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Accurate and efficient modeling of convective heat transfer coefficient (CHTC) by considering the detailed room geometry and heat flux density in building is demanding for economy, environmental amiability, and user satisfaction. We report the three-dimensional finite-volume numerical simulation of internal room flow field characteristics with heated walls. Two different room geometries are chosen to determine the CHTC and temperature distribution. The conservation equations (elliptic partial differential) for the incompressible fluid flows are numerically solved using iterative method with no-slip boundary conditions to compute velocity components, pressure, temperature, turbulent kinetic energy, and dissipation rate. A line-by-line solution technique combined with a tri-diagonal matrix algorithm (TDMA) is used. The temperature field is simulated for various combinations of air-change per hour and geometrical parameters. The values of HTCs are found to enhance with increasing wall temperatures.
机译：考虑到建筑物的详细房间几何形状和热通量密度，对流传热系数（CHTC）进行准确，高效的建模对经济性，环境友好性和用户满意度提出了要求。我们报告了带有加热壁的内部房间流场特性的三维有限体积数值模拟。选择两种不同的房间几何形状来确定CHTC和温度分布。使用无滑移边界条件的迭代方法，对不可压缩流体的守恒方程（椭圆偏微分）进行数值求解，以计算速度分量，压力，温度，湍动能和耗散率。使用了结合三对角矩阵算法（TDMA）的逐行求解技术。针对每小时换气量和几何参数的各种组合模拟温度场。发现HTC的值会随着壁温的升高而增加。

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