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首页> 外文期刊>American Journal of Applied Mathematics >Effect of an adiabatic fin on natural convection heat transfer in a triangular enclosure
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Effect of an adiabatic fin on natural convection heat transfer in a triangular enclosure

机译：绝热翅片对三角形外壳自然对流换热的影响

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Natural convection thermal boundary layer adjacent to the heated inclined wall of a right angled triangle with an adiabatic fin attached to that surface is investigated by numerical simulations. The finite volume based unsteady numerical model is adopted for the simulation. It is revealed from the numerical results that the development of the boundary layer along the inclined surface is characterized by three distinct stages, i.e. a start-up stage, a transitional stage and a steady stage. These three stages can be clearly identified from the numerical simulations. Moreover, in presence of adiabatic fin, the thermal boundary layer adjacent to the inclined wall breaks initially. However, it is reattached with the downstream boundary layer next to the fin. More attention has been given to the boundary layer development near the fin area.
机译：通过数值模拟研究了与直角三角形的加热倾斜壁相邻的自然对流热边界层，该表面上装有绝热翅片。仿真采用基于有限体积的非稳态数值模型。从数值结果可以看出，边界层沿倾斜表面的发展具有三个不同的阶段，即启动阶段，过渡阶段和稳定阶段。从数值模拟可以清楚地识别出这三个阶段。此外，在存在绝热翅片的情况下，与倾斜壁相邻的热边界层最初破裂。但是，它重新连接到鳍旁边的下游边界层。鳍区附近的边界层发展得到了更多的关注。

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