pin fin meaning in English
钉头
Examples
- Characteristics of flow resistance of pin finned drop - shaped tube at different attack angles
流体攻角对滴形钉头管流体阻力特性的影响 - And a parametric method is used for the modeling of the pin fin , spanwise rib , and chordwise rib after delebrately studying their regular structures
并深入研究了扰流柱，纵向肋，横向肋这几种内型典型结构的参数化造型方法。 - Lamilloy is a new cooling technology which has advantage of combining film cooling , internal impingement , large internal heat transfer area and enhanced heat exchange by pin fin array
多孔层板冷却技术集冲击冷却、对流冷却和气膜冷却于一体，是一种新型的冷却方式，具有冷气消耗量少，冷却效率高的优点，应用日益广泛。 - The blade inner channel cooling is a complex convection - conduction coupling problem . this thesis build a three - dimension . compressible turbulence model , and give a general solve method . with the geometrical model of the glossily rectangle straight channel , the rectangle straight channel with in - line arrays disturb plates , the rectangle straight channel with staggered arrays disturb plates , the rectangle straight channel with slant disturb plates , this thesis compute the flow and heat transfer condition when the cold air path though these channels , and gain the temperature field , pressure field , velocity filed , in addition . this thesis also analyze the influence of the different channel height , the different channel materials , the different channels , and gain the function relation between he nusselt number , friction factor and reynolds number . this thesis is emphasis on the new heat transfer enhancement structure , that is , disturb plates , with the comparison with the glossily channel and channel with pin fins , the heat transfer enhancement effect of the former is better , and the conclusion can be used in the design of aircraft blade
叶片内部通道冷却是一个复杂的对流?导热耦合传热问题，本文在分析叶片内部通道冷却的流动与传热情况的基础上，建立了三维、可压缩紊流的物理模型，得到了通用的求解办法；利用不带扰流片的矩形直通道、带顺排扰流片矩形直通道、带叉排扰流片、带倾斜扰流片的矩形直通道的几何模型，计算了冷却空气通过这几种通道时的流动与换热情况，得到了各种不同情况下计算区域的温度场、压力场、速度场；在此基础上分析了不同的通道高度、不同的叶片通道材质对叶片内部通道冷却的影响，并整理得到了各种通道形式下，努谢尔数和阻力因子与雷诺数的函数关系；本文重点研究了新型的叶片内部通道冷却强化传热措施?带扰流片的内部冷却通道的强化传热效果，通过与光滑矩形直通道、带针肋通道的冷却效果的比较，表明了这种新型鲒构的优势，对于叶片内部通道冷却结构的设计可以起到指导的作用。 - A parameter has been defined to account for both the heat transfer enhancement and pressure loss caused by different shapes and configuration of pin fin arrays and the optimization analysis shows that cube - shaped pin - fin arrays can be viable alternatives for pedestal cooling in a blade trailing edge
本文提出了一个强化换热有效性系数来综合考虑扰流柱换热和压力损失的效果，并用它对各种扰流柱进行了优化分析，优化结果表明方形扰流柱排在涡轮叶片尾缘区冷却结构设计中是优先考虑的一种结构型式。