下列关于圆管紊流理论的说法中,不正确的是( )。 -题库考试答案搜索网

下列关于圆管紊流理论的说法中,不正确的是( )。

单选题

2021-09-01 23:49

A、紊流状态主要表现为流体质点的互相撞击和掺混;
B、紊流的时均化处理方法就是用流动参数的时均值与脉动值来代替其实际值;
C、紊流中,切应力包括粘性切应力和雷诺应力,在层流底层中,粘性切应力是主要的,而在紊流核心部分以雷诺应力为主;
D、充分发展的圆管紊流近壁处存在两种流态:水力光滑与水力粗糙,水力光滑是指管道的粗糙突起高出层流边层之外。

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正确答案

D

试题解析

标签：青书学堂西南石油大学工程流体力学(高起专)

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