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首页> 外文期刊>International Journal of Heat and Mass Transfer >Accelerated laminar flow near the heated permeable surface
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Accelerated laminar flow near the heated permeable surface

机译：加热的可渗透表面附近的层流加速

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The paper reports on numerical simulation of an accelerated laminar boundary layer over the heated permeable wall. Xenon was used as a working gas. The finite difference method was applied to solve the system of laminar boundary layer equations with variable gas properties. It has been shown that the gas injection in the mentioned conditions increases maximal velocity within the boundary layer and decreases skin-friction coefficient and thermal Stanton number. On the contrary, gas suction decreases an overshoot phenomenon down to its vanishing and increases skin-friction coefficient and thermal Stanton number up to the value at asymptotic suction. The paper considers a separation of thermal boundary layer at gas injection. The proposed conventional point of this separation is situated farther from the leading edge than the separation point of the dynamic boundary layer.
机译：该论文报道了加热的可渗透壁上的加速层流边界层的数值模拟。氙气被用作工作气体。应用有限差分法求解具有可变气体性质的层流边界层方程组。已经表明，在所述条件下的气体注入增加了边界层内的最大速度，并且降低了皮肤摩擦系数和热斯坦顿数。相反，气体抽吸将过冲现象减小到消失，并且将皮肤摩擦系数和热斯坦顿数增加到渐近抽吸时的值。本文考虑了气体注入时热边界层的分离。提出的这种分离的常规点比动态边界层的分离点更远离前缘。

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