Q4) A rectangular open channel of width 3.0 m carries a discharge of 2.5 m3/s at an average velocity of 0.6 m/s. Determine the maximum possible constriction in width without affecting the upstream depth, assuming friction losses through the constriction are negligible. If the constriction is associated with a smooth upwards step in the bed of 0.2 m, determine the minimum channel width for the same upstream condition.

Q: Water is flowing in trapezoidal channel with 2V:3H at a discharge of Q=3.5m^3/s. If the channel top…

A: Solution:

Q: A trapezoidal channel with sidewalls of 60 degrees has a bottom width of 4 m at total depth of 5 m…

A: Given data for trapezoidal channel,  b1=4, D=5, s=0.005, slope=60°≈3:1 Discharge(Q)=40 m3s, y=3.5…

Q: jump is formed in a 2 m wide channel which is horizontal and A hydraulic rectangular frictionless.…

A:

Q: A trapezoidal channel of bed width 5 m and side slopes 1:2 has a flow of 15 m³/s. At a certain point…

A: For Critical flowas per manning equation,where T= top widthP=wetted perimeter

Q: 8) A hydraulic jump is to be formed in a trapezoidal channel width a base width of 6 m and side…

A:

Q: 2.3 Find the normal depth for a discharge of 6.371 m³/s in a trapezoidal channel with a bottom width…

A: Given trapezoidal channel with side slope of 1H to 1V,Discharge, Q= 6.371 m3/sBottom width, B= 1.524…

Q: A trapezoidal channel has a bottom width of ?=6??and sideslopes of ?=2(1?:2?   a.Determine the…

A: Given b=  6ft Side slop=[1/2) Q=290cfs Find critical depth and energy diagram

Q: The bottom width and bed slope of a long rectangular channel are 4.0 m and 0.0008, respectively. The…

A: Bottom width of rectangular channel, B=4 m Bed slope of channel, So=0.0008 Steady state discharge,…

Q: A hydraulic jump occurs in a V-shaped channel having sides sloping at 45°. Derive an equation…

A: Hydraulic jumpA hydraulic jump is a phenomenon that occurs regularly in open channel flow, such as…

Q: 35p-Q.2) Water flows in a rectangular channel shown below. The bump has a maximum value, AZmax,…

A:

Q: A masonry dam having a sheet piling cutoff at the upstream and is located at a reservoir site as…

A:

Q: Calculate the normal discharge for a depth of 1.5 m in m³/s, to the nearest 100th.

A: Given:- Normal depth, y = 1.5 m Slope = 0.27 m per 100 m

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.