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%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Methodology and Numerical Simulation of Intake Valves Discharge Coefficients for a Single Cylinder Research Engine


    Additional title:

    Sae Technical Papers



    Conference:

    24th SAE Brasil International Congress and Display ; 2015



    Publication date :

    2015-09-22




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Airflow Optimization w/ Distinct Intake Valves Designs by Numerical and Experimental Study in a 4-Cylinder Spark Ignition Engine

    Martins, Fernanda Pinheiro / Gutierrez, Henedino / Onoda, Rogério H. | SAE Technical Papers | 2015


    Steady- and intermittent-flow coefficients of poppet intake valves

    Stanitz, John D / Lucia, Robert E / Masselle, Francis L | NTRS | 1946


    Numerical Simulation of Syngas Blends Combustion in a Research Single-Cylinder Engine

    D'Adamo, Alessandro / Iacovano, Clara / Lacava, Pedro et al. | SAE Technical Papers | 2019