Analysis of In-Cylinder Air Motion in a DI Diesel Engine with Four Different Piston Bowl Configuration - A CFD and PIV Comparison

2013 ◽  
Vol 6 (4) ◽  
pp. 1978-1983 ◽  
Author(s):  
A Gnana Sagaya Raj ◽  
J M Mallikarjuna ◽  
Ganesan Venkitachalam
Keyword(s):  
Diesel Engine ◽  
Piston Bowl ◽  
Di Diesel Engine ◽  
Air Motion

Modelling and CFD Simulation of Effects of Spray Penetration on Piston Bowl Impingement in a DI Diesel Engine for Biodiesel-Diesel Blend (B20)

2012 ◽  
Author(s):  
Subhash Lahane ◽  
K. A. Subramanian
Keyword(s):  
Diesel Engine ◽  
Cfd Simulation ◽  
Injection Pressure ◽  
Spray Penetration ◽  
Penetration Distance ◽  
Piston Bowl ◽  
Fuel Jet ◽  
Wall Impingement ◽  
Di Diesel Engine ◽  
Nozzle Hole

The effect of spray penetration distance on fuel impingement on piston bowl of a 7.4 kW diesel engine for biodiesel-diesel blend (B20) was studied using modeling and CFD simulation. As the peak inline fuel pressure increased from 460 bar with base diesel to 480 bar with B20, the spray penetration distance (fuel jet) increases. It is observed from the study that the jet tip hits on piston bowl resulting to fuel impingement which is one of durability issues for use of biodiesel blend in the diesel engine. In addition to this, the simulation of effects of different injection pressures up to 2000 bar on spray penetration distance and wall impingement were also studied. The penetration distance increases with increase the in-line fuel pressure and it decreases with decrease nozzle hole diameter. The fuel impingement on piston bowl of the engine with high injection pressure (typically 1800 bar) can be avoided by decreasing the nozzle diameter from 0.19 mm to 0.1 mm. Increase in swirl ratio could also reduce fuel impingement problem.

LDA Measurement and a Theoretical Analysis of the In-Cylinder Air Motion in a DI Diesel Engine

1985 ◽  
Author(s):  
Shin Matsuoka ◽  
Takeyuki Kamimoto ◽  
Tomonori Urushihara ◽  
Yoshihiro Mochimaru ◽  
Hideo Morita
Keyword(s):  
Diesel Engine ◽  
Theoretical Analysis ◽  
Di Diesel Engine ◽  
Air Motion ◽  
Lda Measurement

Efficient Approach for Optimization of Piston Bowl Shape, Compression Ratio and EGR for DI Diesel Engine

2011 ◽  
Author(s):  
Shabbir Sheikh ◽  
Nitin Gokhale ◽  
Vishal Thatte ◽  
Naresh Gandhi ◽  
Bhalchandra Deshmukh ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Compression Ratio ◽  
Efficient Approach ◽  
Piston Bowl ◽  
Di Diesel Engine
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