Three-dimensional transient numerical simulation for intake process in the engine intake port-valve-cylinder system

2003 ◽  
Vol 4 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Ma-ji Luo ◽  
Guo-hua Chen ◽  
Yuan-hao Ma
Keyword(s):  
Numerical Simulation ◽  
Three Dimensional ◽  
Intake Port ◽  
Intake Process ◽  
Transient Numerical Simulation

Numerical Simulation on Cylinder Flow Field of Diesel

2013 ◽  
Vol 712-715 ◽  
pp. 1330-1334
Author(s):  
Yin Dong Song ◽  
Yin Nan Yuan ◽  
Chun Ping Wu ◽  
Yong Wang Li ◽  
Peng Zhe Qi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Three Dimensional ◽  
Swirl Flow ◽  
Mixing Rate ◽  
Air Mixing ◽  
Reduce Emissions ◽  
Diesel Cylinder ◽  
Cylinder Flow ◽  
Transient Numerical Simulation

Three dimensional transient numerical simulation on cylinder flow field of 4B26 diesel was done by AVL FIRE. Detailed flow field structure of diesel cylinder was calculated. The typical swirl flow and squish flow were established in 4B26 diesel engine chamber. swirl flow and squish flow can increase the fuel and air mixing rate, and can improve diesel combustion and can reduce emissions of pollutants. Oil beam could accelerate the air around it.

Three-dimensional transient numerical simulation of laser drilling process

2012 ◽  
Vol 42 (8) ◽  
pp. 869-876 ◽  
Author(s):  
ZhiFu GE ◽  
ShaoXia LI ◽  
Gang YU ◽  
XiuLi HE ◽  
GuoQuan LU
Keyword(s):  
Numerical Simulation ◽  
Three Dimensional ◽  
Laser Drilling ◽  
Drilling Process ◽  
Transient Numerical Simulation

Flow Field Numerical Simulation of Diesel Engine Working Process

2012 ◽  
Vol 468-471 ◽  
pp. 1781-1784
Author(s):  
Zhi Feng Dong ◽  
Yin Song ◽  
Yong Zheng Gu ◽  
Wei Fu
Keyword(s):  
Numerical Simulation ◽  
Diesel Engine ◽  
Flow Field ◽  
Working Condition ◽  
Particle Trajectory ◽  
Fluid Model ◽  
Working Process ◽  
Intake Process ◽  
Transient Numerical Simulation ◽  
Distribution Of Flow

The spatial fluid model in diesel engine was built, and multiphase flow transient numerical simulation of working process of diesel engine was done based on computational fluid dynamics. The visualized result of simulation shows the distribution of flow field, press and particle trajectory which can hardly tested direct under the actual working condition. Swirl formed during the intake process and accompanied the whole working process of diesel engine. Keywords: Diesel engine; Numerical simulation; Flow field; Particle trajectory

Three-Dimensional Simulation of the Intake Port Combination Effect on Intake Flow Characteristic in a Highly Intensified Diesel Engine

2013 ◽  
Vol 744 ◽  
pp. 211-214
Author(s):  
Hong Meng Li ◽  
Guo Xiu Li ◽  
Yuan Jing Hou ◽  
Yu Song Yu
Keyword(s):  
Diesel Engine ◽  
Flow Characteristic ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Intake Port ◽  
Intake Process ◽  
Instantaneous Flow Field ◽  
Dimensional Simulation ◽  
Cfd Method ◽  
Intake Flow

In this paper, the three-dimensional CFD method is used in numerical simulation of the highly intensified diesel engine intake process. The effect of different intake flow compound modes on the highly intensified diesel engine is studied (Including compounded port with helical and tangential intake port, compounded port with two helical intake ports and compounded port with two tangential intake ports). By contrasting the instantaneous flow field, flow characteristic and inlet ability of the three compound modes, the pattern of influence on the inlet flow characteristics by compound modes is analyzed. The results indicate that the combinations of the intake port greatly affect the swirl rate and the inlet ability. The interference of the two helical intake ports is serious, causing more inlet loss. The two helical intake ports have the weakest inlet ability among the three types of intake ports. However, two helical intake ports can cause higher swirl rate. Two tangential intake ports inlet ability is the most excellent, but its swirl rate is the lowest.

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