圆管层流,实测管轴线上流速为4m/s,则断面平均流速为()

2023-06-21

圆管层流,实测管轴线上流速为4m/s,则断面平均流速为()

A.4m/s;

B.3.2m/s;

C.2m/s;

D.1m/s。



参考答案:

C