运用Fluent的动态网格技术,对空气低速绕流振动圆柱的对流换热进行了研究,分析了流动和振动参数对换热的影响.数值计算表明,在本文计算范围内,壁面振动可使换热强化,最大可强化9倍,换热的强化随振幅和频率的增大而增大.场协同分析表明,圆柱振动强化换热的原因在于速度场和温度梯度场之间的协同程度得到了改善.
参考文献
| [1] | Hsieh R;Marsters G F .Heat Transfer from a Vibrating Vertical Array of Horizontal Cylinders[J].Canadian Journal of Chemical Engineering,1973,51(07):302-306. |
| [2] | Scanlan J A .Effects of Normal Surface Vibration on Laminar Forced Convective Heat Transfer[J].Industrial and Engineering Chemistry,1958,50(10):1565-1568. |
| [3] | Saxena U C;Laird A D K .Heat Transfer from a Cylinder Oscillating in a Cross-Flow[J].Journal of Heat Transfer,1978,100(12):684-689. |
| [4] | C. -H. Cheng;H. -N. Chen;W. Aung .Experimental study of the effect of transverse oscillation on convection heat transfer from a circular cylinder[J].Journal of heat transfer: Transactions of the ASME,1997(3):474-482. |
| [5] | Tian M C;Cheng L;Lin Y Q et al.Heat Transfer Enhancement by Crossflow-Induced Vibration[J].Heat Transfer-Asian Research,2004,33(04):211-218. |
| [6] | 冷学礼,程林,杜文静.流体低速横掠振动圆管的传热特性研究[J].工程热物理学报,2003(02):328-330. |
| [7] | 程林,田茂诚,张冠敏,邱燕.流体诱导振动复合强化传热的实验研究[J].工程热物理学报,2002(04):485-487. |
| [8] | 杨世铭;陶文铨.传热学[M].北京:高等教育出版社,1998:169. |
| [9] | GUO Zengyuan.Mechanism and control of convective heat transfer-- Coordination of velocity and heat flow fields[J].科学通报(英文版),2001(07):596-599. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%