多斜孔气膜冷却传热特性数值研究  

Numerical Study for Cooling Heat Trasfer Characterstics of Inclined Multi-hole Film

作　　者：谢浩[1] 

机构地区：[1]南京师范大学动力工程学院,江苏南京210042

出　　处：《能源技术》2005年第6期236-240,共5页Energy Technology

摘　　要：对三种不同结构的多斜孔气膜冷却结构进行了数值研究。多斜孔均为叉排结构,斜孔与平板表面夹角均为30,°重点研究了不同相邻孔间距与孔径比Pm/dm(3.0～5.0)和不同吹风比M(0.5～1.5)对热侧壁面绝热温比和换热系数的影响规律。Three-dimensional numerical study is conducted to investigate the heat transfer characteristics for the inclined multi-hole film cooling with different configurations. The holes of all the plates are arranged into staggered pattern and angled 30°to the surface. The effects on the adiabatic wall film cooling effectiveness and the film cooling heat transfer coefficients of hole pitch-to-diameter ratios （from 3.0 to 5.0） and blowing ratio （from 0.5 to 1.5） were analyzed extensively.

关 键 词：多斜孔壁 绝热温比 换热系数 数值模拟 

分 类 号：TK121[动力工程及工程热物理—工程热物理]