Numerical simulation of needle movement nozzle flow coupled with spray for a diesel injector using an Eulerian spray atomization model

被引:0
作者
Raúl Payri
Jaime Gimeno
Pedro Martí-Aldaraví
Mary Alarcón
机构
[1] Universitat Politècnica de València,CMT
来源
Journal of the Brazilian Society of Mechanical Sciences and Engineering | 2017年 / 39卷
关键词
Multi-phase; CFD; Needle dynamics; Atomization; Fuel injection; Moving mesh;
D O I
暂无
中图分类号
学科分类号
摘要
The injector dynamics have a strong impact on spray behavior, therefore, on combustion efficiency, and pollutant emissions. Nozzle flow and spray coupled simulations are useful tools to analyze the effect of nozzle geometry, and they could be used also to study the effect of needle movement. In this work, three different approximations to the same needle lift law are employed in an Eulerian spray atomization model. The main advantage of this model is that is able to simulate nozzle flow and spray seamlessly. Engine combustion network Spray A conditions are simulated. Results show that the experimental needle lift law can be used without any fitting to a smoothed expression, but all details of the needle dynamics must be considered to properly predict mass flow rate and spray penetration. In addition, it has been shown that needle dynamics has a strong impact on heating effects inside the nozzle.
引用
收藏
页码:2585 / 2592
页数:7
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共 38 条
[21]   Hole-to-hole variations in coupled flow and spray simulation of a double-layer multi-holes diesel nozzle [J].
Wang, Chuqiao ;
Adams, Moro ;
Luo, Tong ;
Jin, Tianyu ;
Luo, Fuqiang ;
Gavaises, Manolis .
INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 2021, 22 (10) :3233-3246
[22]   NUMERICAL INVESTIGATION ON EFFECTS OF ELLIPTICAL DIESEL NOZZLE ON PRIMARY SPRAY CHARACTERISTICS BY LARGE EDDY SIMULATION (LES) [J].
Yu, Shenghao ;
Yin, Bifeng ;
Deng, Weixin ;
Jia, Hekun ;
Ye, Ze ;
Xu, Bin ;
Xu, Huaping .
ATOMIZATION AND SPRAYS, 2018, 28 (08) :695-712
[23]   Analysis of diesel spray dynamics using a compressible Eulerian/VOF/LES model and microscopic shadowgraphy [J].
Ghiji, M. ;
Goldsworthy, L. ;
Brandner, P. A. ;
Garaniya, V. ;
Hield, P. .
FUEL, 2017, 188 :352-366
[24]   The cavitation flow and spray characteristics of gasoline-diesel blends in the nozzle of a high-pressure common-rail injector [J].
He, Zhixia ;
Hu, Bihe ;
Wang, Jianquan ;
Guo, Genmiao ;
Feng, Zehao ;
Wang, Chuqiao ;
Duan, Lian .
FUEL, 2023, 350
[25]   Numerical simulations of spray jet in supersonic crossflows using an Eulerian approach with an SMD model [J].
Liu, Haixu ;
Guo, Yincheng ;
Lin, Wenyi .
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2016, 82 :49-64
[26]   NUMERICAL INVESTIGATION ON THE EFFECT OF ADVANCED BREAKUP MODEL ON SPRAY SIMULATION OF A MULTI-HOLE INJECTOR [J].
Tripathy, Srinibas ;
Sahoo, Sridhar ;
Srivastava, Dhananjay Kumar .
PROCEEDINGS OF THE ASME INTERNAL COMBUSTION ENGINE FALL TECHNICAL CONFERENCE, 2018, VOL 2, 2019,
[27]   Numerical Simulation of Pressure-Swirl Spray Dispersion by Using Eulerian-Lagrangian Method [J].
Bafekr, Sajed Hadi ;
Shams, Mehrzad ;
Ebrahimi, Reza ;
Shadaram, Abdollah .
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2011, 32 (01) :47-55
[28]   Optimization of spray break-up CFD simulations by combining Σ-Y Eulerian atomization model with a response surface methodology under diesel engine-like conditions (ECN Spray A) [J].
Pandal, A. ;
Payri, R. ;
Garcia-Oliver, J. M. ;
Pastor, J. M. .
COMPUTERS & FLUIDS, 2017, 156 :9-20
[29]   Numerical investigation of the effect of multi-walled carbon nanotube additive on nozzle flow and spray behaviors of diesel fuel [J].
Sa, Bowen ;
Markov, Vladimir ;
Liu, Ying ;
Kamaltdinov, Vyacheslav ;
Qiao, Wenpei .
FUEL, 2021, 290
[30]   Study on Cavitating Flow Inside Orifice and Spray Angle Near Nozzle Tip According to the Position of Needle Using Enlarged Transparent Acrylic Nozzle [J].
Kim, Byunggyun ;
Ro, Seungcheon ;
Park, Suhan ;
Kim, Young-Bae ;
Choi, Byungchul ;
Jung, Seunghun ;
Lee, Dong-Weon .
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, 2021, 22 (01) :11-18