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%.
Experimental Methodology and Numerical Simulation of Intake Valves Discharge Coefficients for a Single Cylinder Research Engine
Sae Technical Papers
24th SAE Brasil International Congress and Display ; 2015
2015-09-22
Conference paper
English
Three-valves-per-cylinder engine employs high swirl tapered intake ports
Automotive engineering | 1988
|Numerical Simulation of Syngas Blends Combustion in a Research Single-Cylinder Engine
SAE Technical Papers | 2019
|Numerical Simulation of Intake Port and In-Cylinder Flow in a Two-Valve Multi-Cylinder Diesel Engine
SAE Technical Papers | 2016
|