. American engineer and railroad journal . vertical, it issufficient to measure the velocity at a pointof that vertical, distant from the water-level , or exactly , of the total depthof water or total length of the Beleloubski applied this methodwhen determining the discharge of theDnieper River for the design of the Eka-terinoslav bridge. In order to get a more exact value of theaverage velocity in a vertical, the bestmethod is the following : Measure the We will develop the above formula (i) for each of thesecases, and deduce the final formula for the average ve-lo
. American engineer and railroad journal . vertical, it issufficient to measure the velocity at a pointof that vertical, distant from the water-level , or exactly , of the total depthof water or total length of the Beleloubski applied this methodwhen determining the discharge of theDnieper River for the design of the Eka-terinoslav bridge. In order to get a more exact value of theaverage velocity in a vertical, the bestmethod is the following : Measure the We will develop the above formula (i) for each of thesecases, and deduce the final formula for the average ve-locity. In the first case, when the total depth ^ = 3 to 4 ft., thevelocities are measured at depths equal to J, |, f of thatdepth—viz., ^z, -!,=, f^r—if that depth is 4 ft., the partialdepths will be i, 2, and 3 ft.—and the formula (i) beingapplied here gives ^x = A +iBz -f 1 r^2 TiT ^- ^^ = A + \£z + i Cz V, = A +iBz + ■> Cz\ Resolving these equations, we can get the values of the HcUt Leetl- ^ D -^v. Velucifj /iocco H.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
