Experimental Methodology and Numerical Simulation of Intake Valves Discharge Coefficients for a Single Cylinder Research Engine 2015-36-0267
The design and development of highly efficient internal combustion engines require a thorough investigation of the fluid dynamic processes. This paper presents the experimentally determination and computational fluid dynamics simulations of the intake valves discharge coefficients of a four valve spark-ignition single cylinder research engine. The mass flow rate and air pressure were measured directly in the intake port for six different values of valve lift (4.68; 6.16; 7.48; 8.62; 9.46; and 10.49mm). The theoretical mass flow rates were obtained based on considerations of subsonic flow. Simulations were carried using the Star CCM+ commercial code. Mesh independence studies, using the velocity fields as monitors, have been made for reliability of the simulations. As a result, a methodology was successfully implemented to obtain the discharge coefficients experimentally and the simulations were validated with a maximum deviation of 6.62%.
Citation: da Costa, R., Franco, R., Gomes, C., Coelho, R. et al., "Experimental Methodology and Numerical Simulation of Intake Valves Discharge Coefficients for a Single Cylinder Research Engine," SAE Technical Paper 2015-36-0267, 2015, https://doi.org/10.4271/2015-36-0267. Download Citation
Author(s):
Roberto Berlini Rodrigues da Costa, Rafael Lara Franco, Carlos Alberto Gomes, Raniro de Oliveira Alvarenga Coelho, Ramón Molina Valle
Affiliated:
Technology Center of Mobility - UFMG
Pages: 10
Event:
24th SAE Brasil International Congress and Display
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Computational fluid dynamics
Pressure
Valves
Combustion and combustion processes
Spark ignition engines
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