期刊论文

中文

制冷学报

0253-4339

2014

35

3

96-101

10.3969/j.issn.0253-4339.2014.03.096

湖南省科技计划项目(2013GK3154) 湖南省重点学科建设资助项目(湘教发[2011]76号)资助~~

本校为第一机构

对螺旋曲面通道壁面内设置三角翼和椭圆柱两种组合涡发生器进行了研究.利用计算流体软件FLUENT进行数值模拟,在雷诺数Re为4000～ 7000范围内,研究组合间距s、三角翼攻角α、椭圆柱攻角β对换热的影响.由正交实验对涡发生器的结构进行整体优化,得出影响换热因素的主次顺序及优化组合结构,并通过实验测试比较优化结构与常规结构的综合强化换热效果.实验结果表明当s=90mm、α=45°、β=45°时的综合换热效果最佳,与常规结构相比,其强化换热效果提高了18.9％～38.3％,从而验证了模型的正确性和有效性.

The arrangement configuration of delta wing and elliptical cylinder were cautiously carried out on spiral warped channel wall layers of combination vortex generator. Numerical simulation tool FLUENT was used to study the influence of three parameters on heat transfer, including assembly distance s, triangle wing angle of attack a and elliptical cylinder angle of attack/3within the Reynolds number Re range from 4000 to 7000. Then Orthogonal experiment methods were used to optimize the vortex generator structure entirely, and the order of priorit...