Two computer models were used for simulation of the local flow, wall temperature, and heat transfer in combustion chambers of diesel engines. A multidimensional model linked with the conventional k-e turbulence model was employed for the calculation of in-cylinder phenomena. A finite difference procedure with an expanding/contracting grid in axisymmetric and curvilinear representation was used. Fuel injection, accommodated by an empirical formula of spray, was modeled in the form of gaseous jet. Combustion was treated using experimental data of the heat release rate. The temperature distributions of the walls were calculated by another model of thermal analysis, a finite element method, for the cylinder head, cylinder, comet chamber, and piston. Both models were coupled with boundary conditions, namely, wall functions. In DI engine, the flow and temperature fields of cylinder and piston cavity were calculated. In IDI engine, only the comet chamber was considered for the flow and temperature computations. These calculations were utilized to estimate heat transfer performance of combustion chambers and to investigate the thermal effects of hardware design.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Calculation of the In-Cylinder Flow and Heat Transfer in DI and IDI Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1989



    Publication date :

    1989-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Calculation of the in-cylinder flow and heat transfer in di and idi diesel engines

    Inoe,S. / Kobayashi,K. / Akatsuka,F. et al. | Automotive engineering | 1989



    A Rational Approach for Calculation of Heat Transfer in Diesel Engines

    Sitkei, G. / Ramanaiah, G. V. | SAE Technical Papers | 1972


    New Insights into the Mechanisms of In-Cylinder Heat Transfer in Diesel Engines

    Ineichen, B. / Klukowski, C. / Boulouchos, K. et al. | SAE Technical Papers | 1989


    New insights into the mechanisms of in-cylinder heat transfer in diesel engines

    Boulouchos,K. / Eberle,M.K. / Ineichen,B. et al. | Automotive engineering | 1989