A constant head orifice from a tank feeds water into a flume (open channel) 5m in length and 500 mm wide with a rectangular contracted weir (L=200mm) at one end and close at the othe end. The orifice diam is 80mm, coef of discharge=D0.92, and a head h=1m. a) Find the maximum head H of the weir. b) If the supply from the orifice is closed, find the time to lower the head of the weir by 80m c) Find the total time for the flow in the weir to stop after closing the supply of water from th orifice. 80 mm diam. Orifice (Cd = 0.92) O.5m
A constant head orifice from a tank feeds water into a flume (open channel) 5m in length and 500 mm wide with a rectangular contracted weir (L=200mm) at one end and close at the othe end. The orifice diam is 80mm, coef of discharge=D0.92, and a head h=1m. a) Find the maximum head H of the weir. b) If the supply from the orifice is closed, find the time to lower the head of the weir by 80m c) Find the total time for the flow in the weir to stop after closing the supply of water from th orifice. 80 mm diam. Orifice (Cd = 0.92) O.5m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A constant head orifice from a tank feeds water into a flume (open channel) 5m in length and
500 mm wide with a rectangular contracted weir (L=200mm) at one end and close at the other
end. The orifice diam is 80mm, coef of discharge%=D0.92, and a head h=1m.
a) Find the maximum head H of the weir.
b) If the supply from the orifice is closed, find the time to lower the head of the weir by 80mm.
c) Find the total time for the flow in the weir to stop after closing the supply of water from the
orifice.
80 mm diam.
Orifice (Cd = 0.92)
0.5m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F89db961d-7dd2-4ed2-9e05-1153b92b1daa%2Fbd5dbdb6-75f4-44a8-b5b5-d68e19fe286d%2F15u0g7c_processed.png&w=3840&q=75)
Transcribed Image Text:A constant head orifice from a tank feeds water into a flume (open channel) 5m in length and
500 mm wide with a rectangular contracted weir (L=200mm) at one end and close at the other
end. The orifice diam is 80mm, coef of discharge%=D0.92, and a head h=1m.
a) Find the maximum head H of the weir.
b) If the supply from the orifice is closed, find the time to lower the head of the weir by 80mm.
c) Find the total time for the flow in the weir to stop after closing the supply of water from the
orifice.
80 mm diam.
Orifice (Cd = 0.92)
0.5m
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