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    ARTICLE

    NUMERICAL INVESTIGATION FOR THE LAMINAR FLOW EFFECTS OVER ROUGH SURFACE USING DIRECTION SPLITTING

    Mei Sua , Ligai Kangb, Kangjie Sunb,*

    Frontiers in Heat and Mass Transfer, Vol.18, pp. 1-5, 2022, DOI:10.5098/hmt.18.22

    Abstract To study the heat transfer effect of rough surface in laminar flow, the direction splitting method is introduced by fully developed fields for solving the Navier–Stokes equations of incompressible flow in assuming two-dimension. Firstly, the algorithm of the incompressible Navier–Stokes equations with pressure correct is carried out. Secondly, the effects of pressure drop and heat transfer are investigated in different rough surface elements which are configured with triangular and rectangular elements. The Reynolds number, roughness element spacing, and roughness height are also considered as the factors which affect the heat transfer. The results indicate that More >

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