中文摘要：

采用计算流体力学（CFD）方法,研究了一定雷诺数范围内（50≤Re≤200）,正弦波纹流道内的流体充分发展的层流流动和传热性能.比较了不同结构的正弦波纹流道的阻力因子e^传热因子eNu和能效因子e的值,研究结果表明,正弦波纹流道的波纹波幅对于流体流动和传热性能的影响较大.分析了波纹流道中垂直于主流方向特殊横截面上的流体速度矢量图和温度等值线图,研究结果表明,波纹流道的弯曲壁面使得流体在流道中垂直于主流方向的截面上产生二次流,二次流的出现增强了流道中心流体和近壁处流体的混合和传热,传热性能提高的同时阻力增加.

英文摘要：

The characteristics of fully developed laminar flow and heat transfer for sinusoidal wary channel are considered using computational fluid dynamics （CFD） technology under some certain Reynolds number range （50 ≤Re ≤4200）. The frication factor ef, heat transfer factor eNa and energy efficiency factor e of sinusoidal wary channels with different structures are compared, which can be concluded that the ware amplitude of the sinusoidal wary channel has the greater effect on the characteristics. The fluid velocity vectors and temperature isolines of special cross sections in the sinusoidal wary channel are analyzed, and it is showed that when the fluid flow in the wavy channcl, the secondary flow is produced in the sections which are vertical to flow direction, the appearance of the secondary flow enhances the mixing and heat transfer of the fluid which in the center and near the wall of channel, and the characteristic of heat transfer is enhanced and the friction resistance is increased.