Models have been developed and tested for in-cylinder heat transfer without inflow or outflow, but there is no experimentally verified model for in-cylinder heat transfer with inflow-produced turbulence. This model extends the work of Pfriem, in which the cylinder space is divided into a central turbulent region and a laminar wall layer. The laminar wall layer thickness is made a function of inflowing gas velocity, with the functional relationship based on a cylinder wake turbulent heat transfer correlation.The model predicts larger heat transfer magnitude and smaller heat transfer phase shift than the non-turbulent model. It predicts smaller heat transfer magnitude and larger phase shift than another inflow-produced turbulence model.For typical Stirling machine in-cylinder conditions, the model predicts Nusselt number magnitudes ranging roughly from 100 to 2000. It predicts heat transfer phase shifts ranging from near 0 to roughly 10 degrees.


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    Title :

    A Model of In-Cylinder Heat Transfer with Inflow-Produced Turbulence


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    27th Intersociety Energy Conversion Engineering Conference (1992) ; 1992



    Publication date :

    1992-08-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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