4.1层流 42=25.9308N/m 436。=0.095cm 4.4t0=14.7N/m2 4.7=0.04 4.81=0.038h,=0.033m 4.9计算法：1=0.0223，hf=6.64×10-3m 4.103=00.317 4.11n=0.025 412,=3.91m 5有压管道中的恒定流 5.10=0.027m31s。 5.2Q=6.25m/s 5.3Q=0.678m/s 5.4Q-=0.0269m/s△z=0.709m 5.5水泵扬程=29.986m 5.60=0.471m/s,h=526m,(=0.012,飞a-2.5,503，m=1.0) 5.8A点压强水头：21.172m 6明渠恒定均匀流 6.1Q=17.683m/s,0.803ms 6.2v=1.32m1s,Q=6.65m3/s 6.3Q=241.1m/s 6.4Q=20.28m3/s 6.5h=1.lm.b=0.66m