论文标题
内部微观结构驱动的湍流增强流体
Internal microstructure driven turbulence enhancement of fluids
论文作者
论文摘要
在许多应用中，在湍流方案中通常发现了具有内部微观结构，例如密集悬浮液，生物和聚合物添加流体的流体。随着微观结构的复杂性和雷诺数的增加，即使在当今，它们的流程也很难被研究。这种瓶颈是通过微极理论在这里进行新颖的新颖性和有效处理的。我们的发现支持，当较密集的微结构发生时，湍流会因内部流体元素的混乱旋转而加剧。与牛顿流体不同，剪切应力现在减少，粘性和微结构的跨旋转应力在墙壁附近增加并标记湍流的强化。
Fluids with internal microstructure like dense suspensions, biological and polymer added fluids, are commonly found in the turbulent regime in many applications. Their flow is extremely difficult to be studied as microstructure complexity and Reynolds number increase, even nowadays. This bottleneck is novelty and efficiently treated here by the micropolar theory. Our findings support that when denser microstructure occurs turbulence is intensified by the chaotic rotation of internal fluid's elements. Unlike in Newtonian fluids, shear stress is now decreased, and viscous and microstructure interrotational stresses increase near the walls and mark the turbulence intensification.
