Canon Moseley on the steady Flow of a Liquid. 



43 



In the experiments of MM. Darcy and Bazin, Series 51, closed 

 rectangular pipe, breadth [b) internally was 0*8 metre, and its 

 depth (c) 0'5 metre For this series of experiments therefore, 

 by equation (60), 



^ 2(-8 + '5)2 r /-Sx-Sy , A _:i^^\ 



/. Q: 



8-45 



1 -(-30777 + Ije-'^-^^rvU^. 



(62) 



Assuming y = l. 



Q=8-45{l-l-30776-'=^«77^^,^, 



Q = 8-45(l-'96133)z;o, 

 Q = -32676ro. 



Table IX. 



Experiments, Series No. 51, p. 168. Rectangular pipe closed. 

 Breadth 0'8 metre, depth 0'5 metre. (October and Novem- 

 ber 1857:0 







Discharge per second in 



Index 



Velocity at 



cubic metres, 

 Q. 



number. 



axis of pipe, 



^0- 



By theory. 



By experi- 







r=i. 



ment. 





metres. 



m. c. 



m. c. 



1. 



0-618 



0-2019 



0-203 



2. 



0-908 



0-2967 



0-307 



3. 



1-213 



0-3964 



0-411 



4. 



1-505 



0-4918 



0515 



5. 



1-826 



0-5967 



0-618 



6. 



1-961 



0-6408 



0-674 



7. 



2115 



0-6912 



0-721 



8. 



2270 



0-7418 



0-777 



Open Channels. 



The steady flow of a Liquid in an open channel of a constant 

 section and uniform direction and inclination. 



If we imagine a plane to pass through the axis of either of the 

 rectangular pipes above referred to and to be parallel to the 

 bottom of the pipe, it will divide the water flowing through the 



