An impinging-flow based methodology of enhancing the heat transfer in the grooves of a lockup clutch is proposed and studied. In order to evaluate its efficacy and reveal the mechanism, the three-dimensional flow within the groove was solved as a conjugate heat transfer problem in a rotating reference frame using the commercial CFD code FLUENT. The turbulence characteristics were predicted using k-ε model. The comparison of cooling effect was made between a simple baseline groove pattern and a typical flow-impingement based groove pattern of the same groove-to-total area ratio in terms of heat rejection ratio, maximum surface temperature, and heat transfer coefficient. It is found that more heat can be rejected with the impinging-flow based groove from the friction surface than with the baseline while the maximum surface temperature is lower in the former case. The reason for the enhanced heat transfer is found to be the significant increase in turbulence level around the impingement points, i.e. enhanced local turbulence mixing. The effect of relative rotational motion of the plate on the flow in the groove is studied and some technical solutions of compensating this effect are discussed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Heat Transfer Enhancement through Impingement of Flows and its Application in Lock-up Clutches


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Attibele, Pradeep (Autor:in) / Yuan, Yiqing (Autor:in) / Ali, Zulfikar (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    2005-04-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2005-01-1936 Heat Transfer Enhancement through Impingement of Flows and its Application in Lock-up Clutches

    Yuan, Y. / Ali, Z. / Attibele, P. et al. | British Library Conference Proceedings | 2005


    Self-oscillation enhancement of impingement jet heat transfer

    Page, R. H. / Chinnock, P. S. / Seyed-Yagoobi, J. | AIAA | 1996


    Clutches and their application

    Engineering Index Backfile | 1911


    Fluid-Solid Coupled Heat Transfer Investigation of Wet Clutches

    Xiao, Bingqing / Hu, Chenhui / Hu, Jibin et al. | SAE Technical Papers | 2017