当前位置: X-MOL 学术J. Thermophys. Heat Transf. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Thermohydraulic Performance and Entropy Generation of Baffled Channel: Numerical Analysis and Optimization
Journal of Thermophysics and Heat Transfer ( IF 2.1 ) Pub Date : 2021-08-10 , DOI: 10.2514/1.t6332
Nguyen Thanh Luan 1 , Nguyen Minh Phu 2
Affiliation  

This study numerically investigates the effects of the geometrical and operational parameters of an air channel, with an inclined baffle mounted opposite the heating plate, on its thermohydraulic performance and entropy generation. The Reynolds number (Re) was examined in the range from 1000 to 20,000 and the baffle angle α from 0 to 60°, and the clearance ratio C/H was studied in the range from 0.6 to 1.4. The response surface method was applied to determine the optimal design and operating parameters needed to maximize thermohydraulic performance and minimize the entropy generated. The results show that the parameter of thermohydraulic performance (η) of the channel increased with a decreasing Reynolds number and increasing values of the baffle angle and clearance ratio. By contrast, the entropy generation number Ns decreased with an increase in the Reynolds number and the baffle angle and a decrease in the clearance ratio. The results of multi-objective optimization yielded optimum values of Re=14,500, C/H=0.6, and α=59 deg, corresponding to η=0.7374 and Ns=3.683.



中文翻译:

折流道的热工水力性能和熵生成:数值分析和优化

本研究以数值方式研究了空气通道的几何参数和操作参数(在加热板对面安装有倾斜挡板)对其热工水力性能和熵产生的影响。雷诺数 (电阻电子) 在 1000 到 20,000 的范围内进行了检查,并且挡板角度 α 从 0 到 60°,和间隙比 C/H研究范围为 0.6 到 1.4。响应面方法用于确定最大化热工水力性能和最小化产生的熵所需的最佳设计和操作参数。结果表明,热工水力性能参数(η) 的通道随着雷诺数的减少和挡板角度和间隙比的增加而增加。相比之下,熵代数N随着雷诺数和挡板角的增加以及间隙比的减小而减小。多目标优化的结果产生了最佳值电阻电子=14,500, C/H=0.6, 和 α=59 度数,对应于 η=0.7374N=3.683.

更新日期:2021-08-10
down
wechat
bug