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在工程流体力学中,管内充分发展流是研究的热点问题,充分发展流表现在边界层的增厚和相遇。管内充分发展流动的具体工程意义体现在哪些方面?对流体宏观物理量(压力,温度,流量)的影响是什么?
几个特征:
$\frac{\partial U}{\partial x}=0$,速度随x方向不变;
$\frac{\partial p}{\partial x}=C$常数;
一般讨论的是充分发展的槽导流,管道流;
可1维求解,非常快;
因此,我“猜测”,充分发展流经常处于研究之中是因为其是1维的;