Air-side Structural Optimization for Wasp Waist Radiator of Aluminum
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摘要: 为寻找一种与收腰管匹配效果更好的散热翅片结构，先应用正交试验与模拟仿真对收腰管百叶窗散热器翅片的4个主要结构参数，即翅片间距Fp、百叶窗间距Lp、百叶窗宽度Lw和百叶窗角度La进行优化，得到各结构参数对散热器传热性能和压降性能的影响规律，即百叶窗角度La影响最大，翅片间距Lp影响最小。随后，在此基础上提出了散热翅片的优化方案。最后，利用风洞试验对优化前后的散热器性能进行了比较。结果显示，优化后的百叶窗翅片结构可以明显提高散热器空气侧的传热，同时降低了风阻。Abstract: In order to find a heat fin which matches well to the waist tube, the four main structural parameters including fin spacing(Fp), louver spacing(Lp), louver width(Lw) and louver angle(La), are optimized by using the orthogonal test and simulation. Then the influence of the each structural parameter on the heat transfer and pressure drop performance of radiator is obtained. It is found that the louver angle has the greatest influence on the performance of radiator, while the louver spaceing has the smallest influence. Based on the above results, the improved design structure is put forward. Finally, the wind tunnel experiments are carried out to compare the wasp waist tube radiator with the optimized radiator. The results show that the optimal louvered fin structure can obviously improve the air-side heat transfer and reduce the pressure drop.
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Key words:
- wasp waist radiator /
- heat transfer /
- orthogonal test /
- structural optimization
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表 1 结构参数水平设计表
参数名 水平 1 2 3 翅片间距Fp/mm 2 2.26 2.52 百叶窗间距Lp/mm 1.1 1.3 1.5 百叶窗宽度Lw/mm 3.58 3.78 3.98 百叶窗角度La/(°) 23 25 27 
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表 2 结构参数水平设计表
模型编号 Fp/mm Lp/mm Lw/mm La/(°) 1 2 1.1 3.58 23 2 2 1.3 3.78 25 3 2 1.5 3.98 27 4 2.26 1.1 3.78 27 5 2.26 1.3 3.98 23 6 2.26 1.5 3.58 25 7 2.52 1.1 3.98 25 8 2.52 1.3 3.58 27 9 2.52 1.5 3.78 23
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表 3 入口风速为2 m/s正交试验结果分析表
模型编号 Fp/mm Lp/mm Lw/mm La/(°) 传热系数h/(W·(m2·K)-1) 压降ΔP/Pa 综合因子c/(W·(m2·K·Pa)-1) 1 2 1.1 3.58 23 56.0 30.7 1.82 2 2 1.3 3.78 25 41.2 32.4 1.28 3 2 1.5 3.98 27 52.0 41.1 1.27 4 2.26 1.1 3.78 27 24.5 34.7 0.71 5 2.26 1.3 3.98 23 44.2 29.0 1.52 6 2.26 1.5 3.58 25 51.6 37.5 1.38 7 2.52 1.1 3.98 25 47.7 28.8 1.66 8 2.52 1.3 3.58 27 49.6 31.2 1.59 9 2.52 1.5 3.78 23 50.1 28.5 1.76 AVc1 1.46 1.40 1.60 1.7 AVc2 1.2 1.46 1.25 1.44 AVc3 1.67 1.47 1.48 1.19 R 0.47 0.07 0.35 0.51 最优参数 Fp3 Lp3 Lw1 La1
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表 4 不同入口风速下的正交试验分析表
风速/(m·s-1) 名称 Fp Lp Lw La 2 R 0.47 0.07 0.35 0.51 最优参数 Fp3 Lp3 Lw1 La1 4 R 0.34 0.12 0.23 0.36 最优参数 Fp3 Lp1 Lw1 La2 6 R 0.22 0.08 0.11 0.24 最优参数 Fp3 Lp3 Lw1 La1 8 R 0.21 0.04 0.07 0.23 最优参数 Fp3 Lp3 Lw1 La1 10 R 0.143 0.06 0.08 0.140 最优参数 Fp3 Lp3 Lw1 La1 12 R 0.07 0.01 0.09 0.1 最优参数 Fp3 Lp3 Lw1 La2
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表 5 不同入口风速下各参数对散热器性能的影响顺序
风速/(m·s-1) 参数影响顺序 1 2 3 4 2 La Fp Lw Lp 4 La Fp Lw Lp 6 La Fp Lw Lp 8 La Fp Lw Lp 10 Fp La Lw Lp 12 La Lw Fp Lp
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[1] He Y L, Chu P, Tao W Q, et al. Analysis of heat transfer and pressure drop for fin-and-tube heat exchangers with rectangular winglet-type vortex generators[J]. Applied Thermal Engineering, 2013, 61(2):770-783 doi: 10.1016/j.applthermaleng.2012.02.040 [2] Han H, He Y L, Li Y S, et al. A numerical study on compact enhanced fin-and-tube heat exchangers with oval and circular tube configurations[J]. International Journal of Heat and Mass Transfer, 2013, 65:686-695 doi: 10.1016/j.ijheatmasstransfer.2013.06.049 [3] Tang L H, Min Z, Xie G N, et al. Fin pattern effects on air-Side heat transfer and friction characteristics of fin-and-Tube heat exchangers with large number of large-diameter tube rows[J]. Heat Transfer Engineering, 2009, 30(3):171-180 doi: 10.1080/01457630802304253 [4] Lai Y H, Lu M X, Wang Q W. A large eddy simulation of plate-fin and tube heat exchangers with small diameter tubes[J]. Heat Transfer Engineering, 2014, 35(11-12):1137-1143 doi: 10.1080/01457632.2013.863555 [5] Arora A, Subbarao P M V, Agarwal R S. Development of parametric space for the vortex generator location for improving thermal compactness of an existing inline fin and tube heat exchanger[J]. Applied Thermal Engineering, 2016, 98:727-742 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=0064a2594ab4b3e4e16ec17135fd541a [6] Wu H L, Gong Y, Zhu X. Air flow and heat transfer in louver-fin round-tube heat exchangers[J]. Journal of Heat Transfer, 2006, 129(2):200-210 [7] Yoo S Y, Park D S, Chung M H, et al. Heat transfer enhancement for fin-tube heat exchanger using vortex generators[J]. KSME International Journal, 2002, 16(1):109-115 doi: 10.1007/BF03185161 [8] Liu C B, Ming L. Research and optimization on the louvered fin height for subcompact radiator[J]. Applied Mechanics and Materials, 2011, 48-49:906-910 doi: 10.4028/www.scientific.net/AMM.48-49.906 [9] 王任远, 李建雄, 吴金星.散热器空气侧百叶窗翅片结构参数优化[J].流体机械, 2013, 41(6):74-78 doi: 10.3969/j.issn.1005-0329.2013.06.016Wang R Y, Li J X, Wu J X. Structure parameters optimized for louvered fin in air side of radiator[J]. Fluid Machinery, 2013, 41(6):74-78(in Chinese) doi: 10.3969/j.issn.1005-0329.2013.06.016 [10] 王云.汽车热交换器的传热和阻力特性研究[D].重庆: 重庆大学, 2013 http://cdmd.cnki.com.cn/Article/CDMD-10611-1013044101.htmWang Y. Study on heat transfer characteristics and resistance characteristics of automobile heat exchanger[D]. Chongqing: Chongqing University, 2013(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10611-1013044101.htm [11] 毛方.管带式散热器传热特性的数值模拟及场协同分析[D].长春: 吉林大学, 2011 http://cdmd.cnki.com.cn/Article/CDMD-10183-1011102086.htmMao F. Numerical simulation of heat transfer characteristics and field synergy principle analysis of the ribbon-tubular radiator[D]. Changchun: Jilin University, 2011(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10183-1011102086.htm [12] 马秀勤, 赵津, 郑明强, 等.散热管型对散热性能的影响研究[J].机械设计与制造, 2015(8):210-213 doi: 10.3969/j.issn.1001-3997.2015.08.056Ma X Q, Zhao J, Zheng M Q, et al. Study on the effect of tube type on the heat transfer performance[J]. Machinery Design & Manufacture, 2015(8):210-213(in Chinese) doi: 10.3969/j.issn.1001-3997.2015.08.056 [13] 王艳梅, 陈伦军, 徐国顺, 等.新型收腰管散热器散热性能的数值模拟研究[J].现代机械, 2015(6):16-19 http://d.old.wanfangdata.com.cn/Periodical/xdjx201506004Wang Y M, Chen L J, Xu G S, et al. Numerical simulation research of a new type of waist tube radiator's heat dispersion performance[J]. Modern Machinery, 2015(6):16-19(in Chinese) http://d.old.wanfangdata.com.cn/Periodical/xdjx201506004 [14] 赵津, 马秀勤, 李梅珺, 等.收腰管散热器的耦合传热与试验[J].中国机械工程, 2016, 27(16):2166-2171 doi: 10.3969/j.issn.1004-132X.2016.16.007Zhao J, Ma X Q, Li M J, et al. Coupled heat transfer and experiments of waist tube radiator[J]. China Mechanical Engineering, 2016, 27(16):2166-2171(in Chinese) doi: 10.3969/j.issn.1004-132X.2016.16.007 [15] 尹辉俊, 张雯, 刘赟, 等.基于正交试验法的某燃油箱设计[J].机械设计, 2018(2):87-93 doi: 10.3969/j.issn.2095-509X.2018.02.020Yin H J, Zhang W, Liu Y, et al. Design of a fuel tank based on orthogonal test method[J]. Journal of Machine Design, 2018(2):87-93(in Chinese) doi: 10.3969/j.issn.2095-509X.2018.02.020 -
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