A numerical study of the flow in the exhaust port geometry of a Scania heavy-duty diesel engine is performed using the large eddy simulation (LES) and an unsteady Reynolds-Averaged Navier–Stokes (URANS) simulation approach. The calculations are performed at fixed valve positions and stationary boundary conditions to mimic the setup of an air flow bench experiment, which is commonly used to acquire input data for one-dimensional engine simulations. The numerical results are validated against available experimental data. The complex three-dimensional (3D) flow structures generated in the flow field are qualitatively assessed through visualization and analyzed by statistical means. For low valve lifts, the major source of kinetic energy losses occurs in the proximity of the valve. Flow separation occurs immediately downstream of the valve seat. Strong helical flow structures are observed in the exhaust manifold, which are caused due an interaction of the exhaust port streams in the port geometry.
Skip Nav Destination
Article navigation
January 2015
Research-Article
Flow Induced Energy Losses in the Exhaust Port of an Internal Combustion Engine
Yue Wang,
Yue Wang
National Key Laboratory of Aerodynamic
Design and Research,
Design and Research,
Northwestern Polytechnical University
,Xi’an, Shaanxi 710072
, China
Search for other works by this author on:
Bernhard Semlitsch,
Bernhard Semlitsch
1
Linné Flow Centre,
Department of Mechanics,
e-mail: bernhard@mech.kth.se
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
e-mail: bernhard@mech.kth.se
1Corresponding author.
Search for other works by this author on:
Mihai Mihaescu,
Mihai Mihaescu
Mem. ASME
CCGEx, Linné Flow Centre,
Department of Mechanics,
CCGEx, Linné Flow Centre,
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
Search for other works by this author on:
Laszlo Fuchs
Laszlo Fuchs
Professor
CCGEx, Linné Flow Centre,
Department of Mechanics,
CCGEx, Linné Flow Centre,
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
Search for other works by this author on:
Yue Wang
National Key Laboratory of Aerodynamic
Design and Research,
Design and Research,
Northwestern Polytechnical University
,Xi’an, Shaanxi 710072
, China
Bernhard Semlitsch
Linné Flow Centre,
Department of Mechanics,
e-mail: bernhard@mech.kth.se
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
e-mail: bernhard@mech.kth.se
Mihai Mihaescu
Mem. ASME
CCGEx, Linné Flow Centre,
Department of Mechanics,
CCGEx, Linné Flow Centre,
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
Laszlo Fuchs
Professor
CCGEx, Linné Flow Centre,
Department of Mechanics,
CCGEx, Linné Flow Centre,
Department of Mechanics,
KTH Royal Institute of Technology
,Stockholm SE-100 44
, Sweden
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received January 14, 2014; final manuscript received June 26, 2014; published online September 10, 2014. Assoc. Editor: John Abraham.
J. Fluids Eng. Jan 2015, 137(1): 011105 (9 pages)
Published Online: September 10, 2014
Article history
Received:
January 14, 2014
Revision Received:
June 26, 2014
Citation
Wang, Y., Semlitsch, B., Mihaescu, M., and Fuchs, L. (September 10, 2014). "Flow Induced Energy Losses in the Exhaust Port of an Internal Combustion Engine." ASME. J. Fluids Eng. January 2015; 137(1): 011105. https://doi.org/10.1115/1.4027952
Download citation file:
Get Email Alerts
Cited By
Related Articles
Dynamic Modeling of Residual-Affected Homogeneous Charge Compression Ignition Engines with Variable Valve Actuation
J. Dyn. Sys., Meas., Control (September,2005)
PCCI Control Authority of a Modern Diesel Engine Outfitted With Flexible Intake Valve Actuation
J. Dyn. Sys., Meas., Control (September,2010)
Manifold Gas Dynamics Modeling and Its Coupling With Single-Cylinder Engine Models Using Simulink
J. Eng. Gas Turbines Power (April,2003)
Air System and Diesel Combustion Modeling for Hardware in the Loop Applications
J. Eng. Gas Turbines Power (April,2012)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Other Components and Variations
Axial-Flow Compressors
Pulsation and Vibration Analysis of Compression and Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach, Second Edition