• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Centrifugal buoyancy effect on turbulent heat transfer in a rotating two-pasd smooth square channel with sharp 180-deg turns
【24h】

Centrifugal buoyancy effect on turbulent heat transfer in a rotating two-pasd smooth square channel with sharp 180-deg turns

机译：离心浮力对180度急转弯的两步旋转平滑方形通道中湍流传热的影响

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

Centrifugal buoyancy effect on heat transfer in a rotating two-pass square channel with 180-deg sharp turns was numerically investigated by using the large eddy simulation. The effect of the aiding/opposing buoyancy contributions was seen in different longitudinal vortex structure near the pressure surface depending on the radial flow direction and in larger buoyancy-induced variation of the heat transfer on the pressure surface than that on the suction surface. As the buoyancy increased, the friction factor dominated by the pressure loss of the sharp turn decreased a little, and the Colburn's j factor stayed almost constant. As a result, the heat transfer efficiency index slightly increased by the buoyancy.
机译：通过使用大涡模拟，数值研究了旋转浮力对旋转180度急转弯的两通方槽中离心浮力的影响。在压力表面附近的不同纵向涡旋结构中（取决于径向流动方向）以及在压力表面上的吸力引起的浮力诱导的变化大于吸入表面上的浮力引起的变化，可以看到辅助/相反的浮力作用的效果。随着浮力的增加，以急转弯的压力损失为主的摩擦系数略有下降，而科尔本的j系数几乎保持恒定。结果，由于浮力，传热效率指数略有增加。

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