Q. No 3. The pressure drop Dp over a length L of pipe is assumed to...

Q. No 3. The pressure drop D_p over a length L of pipe is assumed to depend on the average velocity V, the pipe’s diameter D ,the average height h of the roughness elements of the pipe wall, the ﬂuid density ρ ,and the ﬂuid viscosity µ .Write a relationship between the pressure drop and the other variables. Use Indicial Method (Rayleigh’s Method) only.

Expert Solution

Ally Wells answered 8 months ago

The pressure drop per unit length of a pipe, dl/dp , for steady, incompressible viscous flow...

The pressure drop per unit length of a pipe, dl/dp , for steady, incompressible viscous flow through a straight horizontal pipe depends on the average velocity, V, density of fluid, p, fluid viscosity, µ, pipe diameter, D, and the roughness height, ks. Determine the dimensionless groups that can be used to correlate the data.

6. An increase in roughness of a pipe with laminar flow would increase the pressure drop...

6. An increase in roughness of a pipe with laminar flow would increase the pressure drop of the pipe. Assume the velocity is the same for the smooth pipe and the rough pipe. a. True b. False

A platform is supported by a row of aluminum pipe columns having length L of 5...

A platform is supported by a row of aluminum pipe columns having length L of 5 m and outer diameter d of 300 mm. The bases of the columns are set in concrete footing and the tops are supported by the platform laterally (like a hinge). The columns are being designed to support compressive loads P of 200 kN. Determine the minimum required thickness t of the columns if a factor of safety n = 1.5 is required with respect...

Give reason: why when velocity across a pipe fitting increases the pressure drop also increases.

Question 4) If the effective pressure of the water in the pipe is 3 atm and...

Question 4) If the effective pressure of the water in the pipe is 3 atm and in the case of h1 = 1m, h2 = 0.5m, h3 = 1m, h4 = 2m and h5 = 0.1m, determine the relative density of the fluid. (Accept that ρoil = 850 kg / m3, ρwater = 1000 kg / m3, ρhg = 13600 kg / m3, g = 9.81 m / s2. Neglect the pressure from the air at the height of h2.)...

QUESTION 3: A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length...

QUESTION 3: A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of nine patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.7, 2.8, 3.0, 2.3, 2.3, 2.2, 2.8, 2.1 and 2.4. a) Find the mean of the sample. b) Find the standard deviation of the sample. c) Find the median...

Calculate the pressure drop (ft of water) over a distance of 800 ft within a PVC...

Calculate the pressure drop (ft of water) over a distance of 800 ft within a PVC pipe carrying 750 ft3/min of landfill gas at 115 ºF. The cross-sectional area of the pipe interior is 0.0884 ft2 (d = 4.026 in). Assume the pressure in the pipeline is close to atmospheric (13.6 lb/in2) and the molecular weight of the gas is 28 lb/mol. Assume the gas is incompressible and the viscosity at 115 º is 7.65×10^-6lb/ft·s. The pipe relative roughnessis 1.5x10-5....

Three charges of +Q are at the three corners of a square of side length L....

Three charges of +Q are at the three corners of a square of side length L. The last corner is occupied by a charge of -Q. Find the electric field at the center of the square.

3. Assume that a particle is confined to a box of length L, and that the...

3. Assume that a particle is confined to a box of length L, and that the system wave function is ψ(x)=sqrt(2/L)*sin[(π*x)/(L)] (1) Is this state an eigenfunction of the momentum operator? Show your work. (2) Calculate the average value of the momentum <p> that would be obtained for a large number of measurements. Explain your result. (3) Calculate the probability that the particle is found between 0.31 L and 0.35 L.

Water flows at a rate of 28 L/min through a horizontal 7.5-cm-diameter pipe under a pressure...

Water flows at a rate of 28 L/min through a horizontal 7.5-cm-diameter pipe under a pressure of 8.1 Pa. At one point, calcium deposits reduce the cross-sectional area of the pipe to 33 cm^2. What is the pressure at this point? (consider the water to be an ideal fluid.)

Question