进气道螺旋段关键结构参数多目标优化设计

doi:10.19562/j.chinasae.qcgc.2021.03.005

Abstract

Abstract:

Using steady?state air?flow experiments and CFD steady?state simulation， combined with the multi?objective optimization design method， the influence of four key structural parameters including minimum cross?sectional area of helical section， the inner radius of volute， the outer radius of volute and the height of the spiral chamber on the inlet flow characteristics of single helical intake port of YN diesel engine is studied. The results show that the approximate mathematical model obtained by regression analysis can realize the positive quantitative research of inlet structure parameters and inlet performance. The multi?objective optimization design of the structural parameters of the original intake port helical section can significantly increase the eddy current ratio （9.3%~14.34%）， with a small decrease of the flow coefficient （0~3.98%）.

Key words: diesel engine, single helical intake port, spiral section, swirl ratio, flow coefficient, multi?objective optimization

Wei Zhang,Libing Xie,Zhaohui Chen,Mayi Zhou,Yong Chen,Jiwen Fan,Li Tao. Multi⁃objective Optimization Design of Key Structural Parameters of Spiral Section of Helical Inlet[J].Automotive Engineering, 2021, 43(3): 337-344.

Figures/Tables 16

次数	截面比 $e$	蜗壳内半径R₁/mm	蜗壳外半径R₂/mm	螺旋室高度H₁/mm
1	0.81	10	29	27
2	0.84	11	30	28
3	0.87	12	31	29
4	0.90	13	32	30
5	0.93	14	33	31
6	0.96	15	34	32
7	0.99	16	35	33

试验号	截面比 $e$	蜗壳内半径R₁/mm	蜗壳外半径R₂/mm	螺旋室高度H₁/mm	流量系数y₁	涡流比y₂
1	0.810	12.0	33.0	32.0	0.572	1.257
2	0.825	14.5	30.5	30.5	0.562	1.393
3	0.840	10.0	35.0	29.0	0.583	1.153
4	0.855	12.5	32.5	27.5	0.574	1.327
5	0.870	15.0	30.0	33.0	0.568	1.390
6	0.885	10.5	34.5	31.5	0.59	1.145
7	0.900	13.0	32.0	30.0	0.588	1.277
8	0.915	15.5	29.5	28.5	0.584	1.377
9	0.930	11.0	34.0	27.0	0.596	1.150
10	0.945	13.5	31.5	32.5	0.591	1.287
11	0.960	16.0	29.0	31.0	0.58	1.370
12	0.975	11.5	33.5	29.5	0.598	1.160
13	0.990	14.0	31.0	28.0	0.577	1.373
14	0.810	11.5	32.5	31.5	0.582	1.280
15	0.825	14.0	30.0	30.0	0.578	1.362
16	0.840	12.0	34.5	28.5	0.573	1.265
17	0.855	14.5	32.0	27.0	0.57	1.361
18	0.870	10.0	29.5	32.5	0.556	1.364
19	0.885	12.5	34.0	31.0	0.564	1.289
20	0.900	15.0	31.5	29.5	0.584	1.329
21	0.915	10.5	29.0	28.0	0.583	1.352
22	0.930	13.0	33.5	32.0	0.584	1.237
23	0.945	15.5	31.0	30.5	0.575	1.419
24	0.960	11.0	33.0	29.0	0.592	1.258
25	0.975	13.5	30.5	27.5	0.58	1.395
26	0.990	16.0	35.0	33.0	0.576	1.379
27	0.810	10.0	29.0	27.0	0.581	1.331
28	0.825	12.5	33.5	32.5	0.586	1.281
29	0.840	15.0	31.0	31.0	0.563	1.395
30	0.855	10.5	33.0	29.5	0.576	1.256
31	0.870	13.0	30.5	28.0	0.557	1.359
32	0.885	15.5	35.0	32.0	0.563	1.329
33	0.900	11.0	32.5	30.5	0.585	1.333
34	0.915	13.5	30.0	29.0	0.582	1.378
35	0.930	16.0	34.5	27.5	0.584	1.291
36	0.945	11.5	32.0	33	0.589	1.294
37	0.960	14.0	29.5	31.5	0.572	1.388
38	0.975	12.0	34.0	30.0	0.58	1.323
39	0.990	14.5	31.5	28.5	0.586	1.349
40	0.990	16.0	35.0	27.0	0.579	1.305

References 17

1	JAFARMADAR S， TAGHAVIFAR H， TAGHAVIFAR H M， et al. Numerical assessment of flow dynamics for various DI diesel engine designs considering swirl number and uniformity index［J］. Energy Conversion and Management， 2016， 110： 347–355.
2	RAMESH N， MALLIKARJUNA J. Evaluation of in⁃cylinder mixture homogeneity in a diesel HCCI engine-a CFD analysis［J］. Engineering Science and Technology， 2016， 19（2）： 917-925.
3	马宏伟，贺象，张晶辉，等. 发动机缸内流动显示试验研究［J］. 汽车工程， 2014， 36（3）： 277-281.
	MA H W， HE X ， ZH J H， et al. Experimental research on flow display in engine cylinder［J］. Automotive Engineering， 2014， 36（3）： 277-281.
4	LI X R， ZHAO W H， GAO H B， et al. Fuel and air mixing characteristics of wall⁃flow⁃guided combustion systems under a low excess air ratio condition in direct injection diesel engines［J］. Energy，2019，175：554-566.
5	张韦，赵罗锋，陈朝辉，等. 双进气道柴油机丝线法可视化稳流测试及缸内气流运动特性分析［J］. 汽车工程， 2019， 41（10）： 1130-1137.
	ZHANG W， ZHAO L F， CHEN C H， et al. Visualized steady flow test and in⁃cylinder air flow characteristics analysis of dual⁃intake diesel engine with silk⁃line method［J］. Automotive Engineering， 2019， 41（10）： 1130-1137.
6	WANG G X， YU W B， LI X B， et al. Experimental and numerical study on the influence of intake swirl on fuel spray and in⁃cylinder combustion characteristics on large bore diesel engine ［J］. Fuel， 2019， 237： 209-221.
7	SADEQ A M， BASSIONY M A， ELBASHIR A M， et al. Combustion and emissions of a diesel engine utilizing novel intake manifold designs and running on alternative fuels［J］. Fuel， 2019， 255.
8	WANG G X， YU W B， LI X B， et al. Study on dynamic characteristics of intake system and combustion of controllable intake swirl diesel engine［J］. Energy， 2019， 180： 1008-1018.
9	BENAJES J， OLMEDA P， MARTIN J， et al. Evaluation of swirl effect on the global energy balance of a diesel engine［J］. Energy， 2017， 122： 168-181.
10	TOKUDA S， KUBOTA M， NOGUCHI Y. Development of CFD shape optimization technology using the adjoint method and its application to engine intake port design［J］. SAE International Journal of Engines， 2013， 6（2）： 833-842.
11	HE C. Helical intake port design and experimental analysis of horizontal diesel engine［C］ International Conference on Digital Manufacturing & Automation. IEEE， 2011， 144： 576-580.
12	马雷，王明露，陈珂. 基于重要工况点的柴油机逐点模型标定［J］. 汽车工程， 2019， 41（1）： 21-28.
	MA L， WANG M L， CHEN K. Point⁃by⁃point model calibration of diesel engine based on important operating points［J］. Automotive Engineering， 2019， 41（1）： 21-28.
13	赖晨光，陈永燕，王媛，等. 某柴油发动机缸内燃烧的数值模拟及优化分析［J］.重庆理工大学学报（自然科学）， 2017， 31（6）： 23-30.
	LAI C G， CHEN Y Y， WANG Y， et al. Numerical simulation and optimization analysis of in⁃cylinder combustion of a diesel engine［J］.Journal of Chongqing University of Technology （Natural Science）， 2017，31（6）： 23-30.
14	朱茂桃，钱洋，顾娅欣，等. 基于Kriging模型的车门刚度和模态优化［J］. 汽车工程， 2013， 35（11）： 1047-1050，1042.
	ZHU M T， QIAN Y， GU Y X， et al. Car door stiffness and modal optimization based on Kriging model［J］. Automotive Engineering， 2013， 35（11）： 1047-1050，1042.
15	刘福水，康宁，徐洋，等. 增压柴油机气道流量系数评价与稳流特性研究［J］. 农业机械学报， 2017， 48（6）： 341-348.
	LIU F S， KANG N， XU Y， et al. Evaluation of flow coefficient and steady flow characteristics of turbocharged diesel engine air passage［J］. Transactions of the Chinese Society of Agricultural Machinery， 2017， 48（6）： 341-348.
16	BENAJES J， NOVELLA R， GOMEA-AORIANO J， et al. Computational assessment towards understanding the energy conversion and combustion process of lean mixtures in passive pre⁃chamber ignited engines［J］. Applied Thermal Engineering， 2020， 178.
17	李玉峰，王子玉，姜莉，等. 柴油机进气道流动特性评价的新方法［J］. 内燃机工程， 2015， 36（6）： 53-59.
	LI Y F， WANG Z Y， JIANG L， et al. A new method for evaluating the flow characteristics of the intake port of a diesel engine［J］. Internal Combustion Engine Engineering， 2015， 36（6）： 53-59.

项目	参数
入口边界压力/kPa	81.6
出口边界压力/kPa	79.1
进气温度/K	293
壁面速度	绝对无滑移、无渗透

发动机指标	参数
型式	直列、四冲程、增压中冷
增压系统	废气涡轮增压器
缸径/mm	102
行程/mm	115
排量/L	3.76
压缩比	17
标定功率/kW	85(3 000 r·min^-1)
最大转矩/(N·m)	440(1 600~2 400 r·min^-1)

模型	评价参数	优化计算值	CFD计算值	试验值	实际优化效果/%
优化模型①	流量系数	0.604	0.593	0.600	3.98
优化模型①	涡流比	1.134	1.212	1.191	-6.15
优化模型②	流量系数	0.569	0.570	0.554	-3.98
优化模型②	涡流比	1.420	1.420	1.451	14.34
优化模型③	流量系数	0.585	0.584	0.580	0.50
优化模型③	涡流比	1.370	1.390	1.387	9.30

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Multi⁃objective Optimization Design of Key Structural Parameters of Spiral Section of Helical Inlet

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Figures/Tables 16

References 17

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