What should be the dimensions of the channel

Reference no: EM13563736

A trapezoidal channel is to design to carry a discharge of 75 m3/s at maximum hydraulic efficiency. The side slope of the channel is 2 H/1 V at the left and slope of right side is 3H/1V. The Manning n value is 0.030.

- If the maximum allowable velocity in the channel is 1.75 m/s, what should be the dimensions of the channel?

Hint: For most efficient channel B=2L, but B=2L can not be used since we have different slopes, therefore write in terms of L and derive.

Reference no: EM13563736

Questions Cloud

Prove that any polygon admits a triangulation : Prove that the smallest angle of any triangulation of a convex polygon whose vertices lie on a circle is the same. This implies that any completion of the Delaunay triangulation of a set of points maximizes the minimum angle.

What is the transistors emitter current : Ethane gas (C2H6) at 25C is burned with 150% theoretical air at 500 K and 1 atm. Find the heat transfer (in KJ/Kmol)from a steady-flow combustor if the products are at 1000 K and (a) complete combustion occurs; (b) 95% of the carbon is converted to C..

How does the nature of the boundary layer affect lift : Sitting on the deck one evening. watching for that pesky bunny, jon and his brother see a twig floating down from an aspen tree. (wait - os that a bunny ?) they wonder just what the boundary layer looks like on the twig.

At what angle should the pilot direct the aircraft : A small aircraft A is about to land with an airspeed of 80 mi/hr. if the aircraft is encountering a steady side wind of speed vw=10 mi/hr as shown, at what angle

What should be the dimensions of the channel : A trapezoidal channel is to design to carry a discharge of 75 m3/s at maximum hydraulic efficiency. The side slope of the channel is 2 H/1 V at the left and slope of right side is 3H/1V. The Manning n value is 0.030.

Deteremine the maximum in-plane and out-of-plane shhear : A pressurized steel tank has a radius r=0.6m, a wall thickness t=18mm and an internal pressure p of 2.8 MPa.The steel has a modulus of elasticity E of 200 GP and a poissons ratio 0.30.Determine the hoop and axial stressses

Determine the maximum stress and strain in the ball : A rubber ball is inflated to a pressure of 65 kPa .At that pressure the diameter of the ball is 240mm and the wall thickness is 1.25 mm.The rubber has a modulus of elasticity E of 3.6 Mpa and a poisoon'd ratio of 0.48.

What is the maximum internal pressure : A cylindrical pressure vessel can support an internal pressure of 2640 psi. The maximum hoop stress is (65000/2) psi and the maximum shear stress is 16000 psi. If the diameter of the tank is 7 inches,what is the minimum wall thickness. If the wall th..

Determine the maximum shear stress in the material : An element of aluminiun in the form of a rectangular parallel pipe has a length 'a' along the x axis of 5.5 inches, a length 'b' along the y axis of 4.5 inches and a length 'c' along the z axis of 3.5 inches.

User Account

All Pages