斯托克斯数(Stokes number)是一个无量纲数,颗粒松弛时间和流体特征时间的比,它描述了悬浮颗粒在流体中的行为。
实验及计算表明:常用的斯托克斯公式仅适应于颗粒沉降雷诺数较小的情况;
The experiments and calculation indicate that the common Stokes formula is only suitable to the situation with small grain settling Reynold number.
由斯托克斯准数为1/16导出的临界流速值,只有在纯理论研究的计算上才具有意义;
The critical velocity of flow gotten by Stokes'number 1/16 only had its significance in theory.
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