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acre angle average Avoirdupois Bossut bottom Buat calculated catchment catchment basin cent centre channel coeffi coefficient of discharge coefficient of velocity column contraction crest cubic feet cubic foot cylindrical diagram diaphragm discharge in cubic Ditto drainage effect elevation engine engravings equal equation erogation experiments Falls per mile feet per minute feet per second find the discharge flowing folio foot formula found from Table friction gallons give given head due heads measured horizontal hydraulic inclination hydraulic mean depth inches per second increase Interpolated junction length loss of head maximum mean radius mean velocity morocco multiplied nearly notch orifice of entry overfall pipe practical quantity of water rain-fall ratio rectangular reservoir River Robe rivers sewers short tube square square mile submain supply theoretical thin plate tion vary velocity of approach velocity of discharge water wheels weir wheel width
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381 페이지 - The aperture being the same, the effect will be nearly as the cube of the velocity of the water.
126 페이지 - This formula is submitted at present temporarily, as being accurate enough for use for ordinary practical purposes, for the measurement of water by notches similar to the one experimented on, and for quantities of water limited to nearly the same range as those in the experiments ; but as being, of course, subject to amendment by more perfect experiments extending through a wider range of quantities of water.
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123 페이지 - ... and laterally, so as to form a bottom to the channel of approach, which will both be smooth and will serve as the lower bounding surface of a passage of approach, unchanging in form, while increasing in magnitude at the places, at least, which are adjacent to the vertex of the notch. The floor may...