The objective of present work is to explore the fully developed turbulent flow in a cylindrical smooth pipe by means of direct numerical simulation. Spectral method and spectral element method are both used in the present DNS.
本文采用直接数值模拟的方法对光滑圆管充分发展湍流进行了研究。
参考来源 - 圆管湍流的数值研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Heat transfer in turbulent free swirl flow produced by a new developed swirl generator in the inlet region of a smooth pipe has been studied.
研究由一种新的旋流发生装置所形成的自由旋流在光滑管入口段的传热情况。
Duct branch is rich in natural form of uniform distribution, wall smooth, branch pipe and tube diameter on the transition to a flat.
导管分支丰富，形态自然，分布均匀，管壁光滑，分支导管与上一级导管管径过渡平缓。
The solution: Need to check the atomization of the injector and the intake pipe is smooth or not.
解决办法：需检查喷油器的雾化状况以及进气管是否畅通，有无堵塞物。
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