您要查找的是不是:
- NUMERICAL STUDY OF FILM COOLING FLOW ON POROUS VANE WITH CONJUGATE HEAT TRANSFER 气热耦合多孔气膜冷却流动的数值研究
- film cooling flow 气膜冷却
- When there is impingement, the effect of flow and geometrical parameters on the local heat transfer characteristics near film cooling holes is investigated, and the mechanism of local heat transfer characteristics is obtained. 在有冲击射流时,着重研究了流动和几何参数对气膜孔局部换热特性的影响,分析了“冲击-气膜出流”局部换热特性规律。
- When there is no impingement, the investigation about flow extravasation effect form film cooling holes is carried out with different cross flow Reynolds Numbers and different density flow ratios of the film outflow to cross flow. 在无冲击射流时,通过改变来流雷诺数、气膜出流与横流密流比,对气膜孔的“溢流效应”进行了研究。
- The flow fields and cooling effectiveness of the film cooling from a row of cylindrical angled holes with special sphenoid tabs are investigated numerically at different blowing ratios. 在倾斜圆柱形气膜孔中加装一种特制的楔形突片+结构,可以改善气膜孔下游平均冷却效率,本文对此进行了数值研究。
- And, the cooling flow rate of the clearance between stator and rotor as well as the hole of rotor flange was obtained. 获得了静盘与转盘间隙以及转盘外缘小孔的冷气流量。
- The influences of injection angle on the aerodynamic aspects of endwall film cooling and on the secondary flow vortex structures in the near endwall region of the passage were studied. 著重研究了喷射角对端壁气膜冷却的气动特性和对叶栅通道中特别是端壁附近的流场结构的影响。
- There were better benefits through cooling by slot and wiggle-strip film cooling. 其中缝隙式气膜冷却和波纹板式气膜冷却冷却结构的冷却效果比较好。
- The cooling flow has the cooling effect on the flat for the flat is covered with lengthways coupled-vortex, which obstructs the main flow and the flat. 冷却气流对底面形成气膜冷却的效果是由于纵向耦合涡覆盖在底面之上,阻隔主流与底面直接接触;
- TLC technique can be successfully applied to reflect film cooling effectual area and cooling effect. 利用液晶测温技术可以很好地反映气膜冷却区域及冷却效果等。
- Examine the system pressures, flow rates and temperatures to ensure flow instability, or inadequate cooling flow, does not occur under any operating conditions. 检测系统压力、流量、温度,确保在任何工况下均不会发生流动不稳定以及冷却不足等现象。
- There were three film cooling schemes used, namely, slot, discrete-hole and wiggle-strip. 采用的冷却方案共有3种,分别是缝隙式、离散孔式和波纹板式气膜冷却方案。
- All the flowers She tends in her garden, Which she sweetly Bears on her bosom, And her roses In a purple glow, Brooklet, refresh them With cooling flow. 花园里开满了灿烂的花,戴在她胸前多么漂亮,鲜艳的玫瑰花儿正在开放,小溪你愉快地流向前方,鲜艳的玫瑰花儿正在开放,小溪你愉快地流向前方。
- The empiric formulas for calculating slot film cooling effectiveness were derived from the test data according to the turbulence-mixing model. 根据湍流混合模型及气膜效率试验数据归纳了计算缝槽气膜冷却气膜效率的经验关系式。
- The unsteady wake made the time-averaged film cooling effectiveness decreased at blowing ratio of 0.5, rod diameter of 4mm. 在吹风比M=0.;5,细钢棒直径4mm时,非定常尾迹使气膜的时均冷却有效温比降低。
- The enhancement of turbulence level lead to obvious decrease in film cooling effectiveness when p/d is large and the momentum ratio is high. 在孔节距及动量比均较大时,主流湍流度的增大会导致气膜冷却效率较为明显的下降.
- Film cooling effectiveness for injection from single row and double row dustpan shaped holes has been studied experimentally. 摘要对双排错排簸箕形孔气膜冷却效率进行了实验研究,测出了孔排下游的局部冷却效率的分布。
- This novel method avoids the shortcomings of conventional spray or film cooling systems, such as water penetration through cracks, high maintenance requirement, etc. 这种新颖的方法避免了传统喷洒冷却或薄雾冷却系统的不足,例如水渗透进入缝隙。
- The Film cooling effectiveness on the blade surface were measured in the cases of mainstream Reynolds number from 250000 to 450000 and blowing ratio from 0.5 to 2.5. 实验的参数变化范围是:基于叶片弦长的来流雷诺数250000~450000,吹风比0.;5~2