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.

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.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

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= 0.92, and a head h=1m. a) Find the maximum head H of the weir.
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