Determine the actual distance below the surface at which

Assignment Help Civil Engineering
Reference no: EM13542357

In the determination of the average velocity of flow in wide rivers, it is common practice to estimate the average velocity in a vertical section by making a single measurement at a distance below the water surface equal to 60 percent of the depth. Assuming the following equation represents the true distribution in the vertical, determine the actual distance below the surface at which the velocity, u, equals the depth-averaged velocity, U. Provide a plot of your results.

(u-U)/(U*sqrt(f)) = 2 log (y/h) +0.88

u = velocity at a distance y above the river bed

U = depth-averaged velocity

h = flow depth

f = friction factor (a dimensionless constant)

Reference no: EM13542357

Questions Cloud

Rappahannock above the point where the two streams mix : The Rappahannock River near Warrenton, VA has a flow rate of 3.00 cms. Tin Pot Run (a pristine stream) discharges into the Rappahannock at a flow rate of 0.05 cms
Determine the period of vibration and the maximum : A 30 lb uniform cylinder can roll without sliding on a 15 degree incline. A belt is attached to the rim of the cylinder, and a spring holds the cylinder at rest. If the center of the cylinder is moved 2 in
How much styrene transfers to the ethylene glycol phase : The distribution coefficient of styrene distributed between ethylbenzene and ethylene glycol at 25 degrees C is .19 mass fraction in the ethylene glycol phase per mass
Calculate the head loss in 500 m of pipe : Carbon dioxide flows in a 75 mm diameter PVC pipe at 0.014 kg/s at a pressure of 345 kN/m^2/s abs and a temperature of 10 degrees C. Calculate the head loss in 500 m of pipe.
Determine the actual distance below the surface at which : In the determination of the average velocity of flow in wide rivers, it is common practice to estimate the average velocity in a vertical section by making a single measurement at a distance below
Compute the required weight of the coarse : A concrete mix with a 3 inch slump, w/c (water content) ratio of 0.50, and sand with a fineness modulus of 2.4 contrains 1700 lb/cubic yard of coarse aggregate. Compute the required weight of the coarse
What are the measures adopted to enhance sufficient : In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?
Why is a length of about 1.25l bridge segment is constructed : In the construction of a two-span bridge (span length = L) by using span-by-span construction, why is a length of about 1.25L bridge segment is constructed in the first phase of construction?
What do you think is the best ratio of b/y to use in your : A canal of rectangular cross-section and an n=0.030 is to be laid on a slope of 0.002 and is to carry a discharge of 30 m3/s. Calculate the cross-sectional area required for the channel to carry this flow based on the norma

Reviews

Write a Review

Civil Engineering Questions & Answers

  What is the definition of a customer

What is the definition of a customer? What are some examples of internal and external customers? Is the measurement of customer satisfaction different for internal customers than for external customers?

  Determine the nominal cross-sectional dimensions for douglas

determine the nominal cross-sectional dimensions for a Douglas fir larch No. 1 grade beam of least weight that supports a total uniformly distributed load of 12 kip on a simple thirty-two foot span considering loading in shear

  Find what is the depreciation charges expect on the laptop

A laptop has a four year life span with an initial cost of $900 and $100 salvage value. According to the straight line method what is the depreciation charges you expect on the laptop

  Determine the minimum entropy change of the thermal energy

Heat is now added until the quality is 40 percent. Determine the minimum entropy change of the thermal energy reservoir supplying this heat.

  What minimum size pipe laid on the respective minimum slope

A MH at an intersection has an inflow from three 8-inch PVC (n = 0.01) sanitary sewer pipes laid at minimum slope converging at an intersection and one pipe taking the flow from those three further downstream.

  Determine what is the resulting solids concentration

Raw primary sludge at a solids concentraion of 4% is mixed with waste activated sludge at a solids concentration of .5%. The flows are 20 and 24 gal/min respectively. What is the resulting solids concentration

  What would be the magnitude of the mahor principal stress

A normally consolidated clay soil has angle of friction = 20 degrees and effective stress angle of friction = 28 degrees. If a consolidated undrained test is conducted on this clay with an all around pressure of 21.5 lb/in^2

  Explain how to draw v-t and x-t curves of industrial planer

The velocity of the bed is limited to a maximum value of 150 mm/s to the right and 300 mm/s to the left; the acceleration is successively equal to 150 mm/s^2 to the right, zero 150 mm/s^2 to the left, zero, etc.

  Determine what is runoff coefficient in a basin located

What is the runoff coefficient in a basin located near the middle of the climatic spectrum, with annual precipitation P = 32 in, ecosystem evapotranspiration ET = 22 in, and baseflow U = 3 in

  Determine how many bolt and hole have to be recycled

You are going to assemble 1,000 bolt + hole combinations. The bolts have a mean diameter of 1.000 cm, normally distributed with standard deviation of 0.010 cm. The holes have a mean diameter of 1.030 cm, normally distributed with standard deviatio..

  How to determine the height of the building in feet

The basic barometer can be used to measure the height of abuilding. If the barometric readings at the top and at the bottomof a building are 28.7 and 29.7 in Hg, respectively, determine the height of the building in feet.

  What was the difference in elevation between the two points

A rod was held on point B and the telescope is inclined so that the horizontal cross line of the transit intersects the rod at the 5.2 ft mark. If the reading on the vertical limb of the transit was +25° 19',

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd