Question

Problem 2: The outfall from a large settling tank of diameter D of a sewage treatment plant discharges water with density pe to a lake with density Pu- The surface of the pond is h above sea level and the discharge of the outfall pipe is H below sea level. The outfall pipe is length L and diameter d. Assume the flow rate of the treated water is small compared to the volume of the lake so the lake density pu is constant. Assume D>>d, Known variables: Pe Pt, h, H, L, d, D air Patm treatment water, p SEA LEVEL lake water pw 1. Give an expression for the pressure at the exit of the pipe. 2. If the water flow through the pipe were inviscid, give the expression for the velocity V in the pipe. e of water into the settling tank needed to keep the setting tank at a constant water level.

Answer 1

タTn flu Prokh it is not mentioned if the lake or tis odide e lake Sur ate is Sea lkel or the level ot klk Same ab Sea l at ine 工〈TS the level of kle itself is H, bebte Scakve then Plm 呉Q Gumparcd to volbme o uke wil not rie pperen poinb ol theorem 3 an theorem between (1) and ( 28 ash

ve Arrbǐ2 Bernoollis Teorem beheer. Dah@ atm 2. ōt(htn)..ir, +글 츠 + 3、6-1d2V