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中文核心期刊

含灰气体激波管侧壁层流边界层流动特征

THE CHARACTERISTICS OF LAMINAR SIDEWALL BOUNDARY-LAYER FLOWS IN A DUSTY-GAS SHOCK TUBE

  • 摘要: 水文采用数值方法求解含灰气体激波管中侧壁层流边界层,揭示了这类流动中呈现的三个特征不同的区域.为了研究两相边界层的发展,本文构造了一个包括六点和四点格式的隐式有限差分程序,引进了适当描述气固两相间相互作用的非斯托克斯关系,并分别给出了气体和粒子的速度与温度剖面。此外,文中还讨论了激波管压力比、粒子载荷比和粒子尺寸对侧壁边界层流动特性的影响。

     

    Abstract: Laminar sidewall boundary-flayer flows in a dusty-gas shock tube are solved numerically by a finite-difference procedure. The results indicate that there exist three different characteristic flow regions. The details are given of an implicit four-and six-point scheme to study the development of the boundary layer. An appropriate non-Stokes relation to describe the interaction between the two phases is employed. The resulting velocity and temperature profiles across the boundary layer are given for gas and p...

     

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