本文分析了圆管内单相对流传热过程的熵产,以局部熵产率为优化目标,流动功耗一定及能量与质量守恒为约束条件,应用拉格朗日极值原理对管内流动进行分析优化,导出局部熵产率为最小时的控制方程组,并运用Fluent软件对该方程组进行数值求解,得到圆管单相优化后的速度场与温度场.结果表明,以熵产最小为目标优化后的流场为多涡的纵向旋流,其换热及流动性能较好.
参考文献
| [1] | Z. F. Huang;A. Nakayama;K. Yang;C. Yang;W. Liu .Enhancing heat transfer in the core flow by using porous medium insert in a tube[J].International Journal of Heat and Mass Transfer,2010(5/6):1164-1174. |
| [2] | 李大鹏,孙丰瑞,焦增庚.传热与流动系统熵产生的研究与进展[J].能源研究与信息,2000(03):40-46. |
| [3] | Pouria Ahmadi;Hassan Hajabdollahi;Ibrahim Dincer .Cost and Entropy Generation Minimization of a Cross-Flow Plate Fin Heat Exchanger Using Multi-Objective Genetic Algorithm[J].Journal of heat transfer: Transactions of the ASME,2011(2):021801-1-021801-10. |
| [4] | Jiangfeng Guo;Lin Cheng;Mingtian Xu .Optimization design of shell-and-tube heat exchanger by entropy generation minimization and genetic algorithm[J].Applied thermal engineering: Design, processes, equipment, economics,2009(14/15):2954-2960. |
| [5] | Jia, H.;Liu, W.;Liu, Z..Enhancing convective heat transfer based on minimum power consumption principle[J].Chemical Engineering Science,2012:225-230. |
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%