nd is: Also the value h^ can be negative ; H—/i^ + A3 4-/^2 then is C„ /- . r„ cota + cot/? 1 -^ = V yu sma. -^ — 7 — c r Qoty—cotcp sm^ 2g'^ ''^ 6 d~2c/ Another not so complicated may be used instead, obtained from equations (6.) and or : (15.), and is: (20). cota + cot/5 = — ^ • -p- .… … ;0;i|:c^;||^^j^^^^^^pgm^^^^ If the , turbine is made in such way that the water discharges into the air The values of p^ and 2^1 ought never to when it leaves the wheel, then is p^=p^. The value of H is then : be so small as to be nearly equal to zero, and should usually be not less than p^. For…
Engineering
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