...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Thermal Sciences >Effects of mainstream attack angles on film-cooling effectiveness of double-jet film-cooling
【24h】

Effects of mainstream attack angles on film-cooling effectiveness of double-jet film-cooling

机译：主流攻击角对双喷膜冷却膜冷却效果的影响

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

Effects of mainstream attack angles on double-jet film-cooling (DJFC) effectiveness under different blowing ratios (M = 0.5, 1.0, 1.5, 2.0) are investigated experimentally on a flat plate, and the flow field is obtained by simulation. The attack angles (i) are -30 degrees, -20 degrees, -10 degrees, 0 degrees, 10 degrees, 20 degrees, 30 degrees respectively. The spanwise distance (p/d) of DJFC is 0.5, and the streamwise distance (s/d) is 3.0. Effects of density ratios (DR = 1.0, 1.5, 2.5) are also considered. Results show that at small attack angles (i = -10 degrees, 0 degrees, 10 degrees), film-cooling effectiveness is highest at most blowing ratios. At large positive angles (i = 20 degrees, 30 degrees), the film covers a large area and cooling effectiveness is substantial. In addition, density ratio has a strong influence on cooling at these two attack angles. At large negative angles (i = -20 degrees, -30 degrees), the lateral coverage of the film is limited and the cooling effectiveness is very low.
机译：实验在平板上实验研究了在不同吹气比（M = 0.5,1.0,1.5,2.0）下进行双喷射膜冷却（DJFC）有效性的影响，并且通过模拟获得流场。攻击角（i）为-30度，-20度，-10度，0度，10度，20度，30度。 DJFC的距离距离（P / D）为0.5，流动距离（S / D）为3.0。还考虑了密度比（DR = 1.0,1.5,2.5）的影响。结果表明，在小的攻击角度（i = -10度，0度，10度），最多吹气比率最高。在大的角度（i = 20度，30度）下，薄膜覆盖大面积，冷却效果很大。此外，密度比对这两个攻击角度的冷却有很大的影响。在大的负角度（i = -20度，-30度）下，薄膜的横向覆盖限制，冷却效果非常低。

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