Wall shear stress and friction velocity

Assignment Help Civil Engineering
Reference no: EM1384209

1) A rectangular channel 5 m wide carries a discharge of 10 m^3/s at a uniform depth of 3 m. The channel is running on a slope of 0.0025 m/m. Estimate wall shear stress and friction velocity. Assume the density of flowing water as 1000 kg/m^3.

2) A horizontal pipe 0.3 m in diameter has an available pressure drop of 100N/m^2 to drive a flow rate of 0.5 m^3/s across a length of 100m. What shear stress will be developed on the pipe boundary by this flow condition?

Reference no: EM1384209


Write a Review


Civil Engineering Questions & Answers

  Aggregate in the wheelbarrow weight

You fill a 2-cubic foot wheelbarrow to the top with aggregate. if the specific gravity of the aggregate is 2.548 and 18% of the aggregate is void spaces, how much does the aggregate in the wheelbarrow weight?

  Rate of change in volume

A water tank has a height of 120m, and its area of cross-section is 2000m. Water is released from the tank and the water level drops by 1 meter every minute. Find the rate of change in volume.

  Pressure on the soil if theta is given

A pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees? Assum..

  Cleaning paintbrush with solvent

The brush is immersed in the first volume and agitated until equilibrium is established, removed and the exercise is repeated with the second volume. Assume that the solvent remaining in the brush after it is removed from the first batch is insign..

  Write a paper on steel sustainability

Write a paper on steel sustainability.

  Hydrograph for a watershed having a drainagearea

For the data given below, derive the 2-hr unit hydrograph for a watershed having a drainagearea of 216 km^2, assuming a constant baseflow of 20 m^3/s.

  Problem on coefficient of rolling resistance

What is the minimum distance from the stalled car at which the driver could apply the brakes and still stop before hitting it? Assume coefficient of rolling resistance of 0.013.

  Find out velocity head expressed in atmospheres

What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?

  Tackling the problem of making tunnel

You are a Project Manager on site where work for 3K.m. long Tunnel has been undertaken. The site is remote and takes about 2 days travel to nearest town. Supervisors, Technicians & Skilled Workers are engaged in dangerous / hazardous work.

  Cylindrical pressure vessel with hemispherical ends

A cylindrical pressure vessel with hemispherical ends has a 2.5-m radius and a 5-mm wall thickness. It contains a gas with pressure pi = 6×10 5 Pa and the outer wall is subjected to atmospheric pressure p 0 = 1 × 10 5 Pa.

  Finding average time in system

If the time required to pay for parking is exponentially distributed with a mean of 15 seconds, find the average time in system.

  Volume of soil-excavated from the borrow pit

The volume of fill required is 2500 cubic meters. Find the volume of soil that must be excavated from the borrow pit to furnish the required volume of fill. (in cubic meters).

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