实验研究了直径范围50～200 μm微细光滑圆管及粗糙管内气体阻力特性.结果表明所研究光滑微细管内阻力特性与常规管基本符合,从层流到紊流的转捩Re也未明显提前,而粗糙管阻力要远大于理论值.由于尺度效应,一些非常规因素对微尺度流动将产生明显影响.综合前人研究结果,对影响微尺度阻力特性研究结果的相关因素进行了探讨.
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