Question

For flow in a circular tube, evaluate the ratio of <Vz2>/<Vz>2 for (1) laminar flow (using...

For flow in a circular tube, evaluate the ratio of <Vz2>/<Vz>2 for (1) laminar flow (using parabolic velocity profile) and (2) turbulent flow (using 1/7- power expression).

Engineering   Chemical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. For flow in a circular tube, please evaluate the ratio of <Vz^2>/<Vz>^2 for (1) laminar...
1. For flow in a circular tube, please evaluate the ratio of <Vz^2>/<Vz>^2 for (1) laminar flow (using parabolic velocity profile) and (2) turbulent flow (using 1/7- power expression). 2. For turbulent flow in smooth circular tubes, the above 1/7-power is not general. Empirical fitting of the curves of the time-smoothed velocity profiles suggested the following function, (Vz)/(Vz,max) = ((1-(r/R))^(1/n) , in which n depends on Reynolds number: near Re = 4000, n=6; near Re = 1.1*10^5, n=7; and near...
Someone claims that the volume flow rate in a circular pipe with laminar flow can be...
Someone claims that the volume flow rate in a circular pipe with laminar flow can be determined by measuring the velocity near the walls in the fully developed region, multiplying it by the cross-sectional area, and dividing the result by 2. Do you agree? Yes or No?
Consider an internal flow through a circular tube. Assuming hydrodynamically fully developed condition, the velocity profile...
Consider an internal flow through a circular tube. Assuming hydrodynamically fully developed condition, the velocity profile is given as ??(??) = 2????????(1 ? ??^2/??^2 ). For constant surface heat flux case, a) Calculate NuD for thermally fully developed condition. b) Also, plot variations of tube surface temperature and mean fluid temperature along flow direction (x) including entry and fully developed region. c) Can you plot variation of convective heat transfer coefficient (h) along flow direction (x) including entry and fully...
Water at 15°C enters a tube of 2 cm of diameter with flow rate 3953 kg/h....
Water at 15°C enters a tube of 2 cm of diameter with flow rate 3953 kg/h. Assume the ratio L/D>10, and the wall temperature is constant at 80-C. The outlet temperature is 50°C The properties of water at the film temperature are density rho = p = 985 kg/m3, specific heat Cp = 4180 J/kgk, conductivity k = 0.651 W/mK, dynamic viscosity mu= u = 4.71 × 10- kg/ms, At the wall temperature of 80°C we have dynamic viscosity muw=...
Problem 2 The Circular Flow Model Please answer the following questions a true or false. 1....
Problem 2 The Circular Flow Model Please answer the following questions a true or false. 1. There are three economic actors in our circular flow model: households, firms and markets. 2. The ultimate goal for households is to acquire goods and services. 3. The ultimate goal for firms is to acquire land, labor and capital. 4. The following are all factors of production - land, labor, capital, and goods and services 5. Firms own the factors of production. 6. The...
A parallelogram has adjacent sides in the ratio of 2:1 that make an angle of 60...
A parallelogram has adjacent sides in the ratio of 2:1 that make an angle of 60 degrees with each other. Find the acute angle made by the diagonals of this parallelogram (first obtain an expression in terms of integers and then evaluate it numerically to get an angle in degrees).
In the circular flow diagram, 1) income and spending in the model are never equal. 2)...
In the circular flow diagram, 1) income and spending in the model are never equal. 2) the value of the goods and services produced in the economy and income cannot be the same. 3) the only player is households. 4) income must always equal spending which equals the value of goods and services produced in the economy.
1.What is the volumetric flow rate of a solution with density 1.5 kg/m3 flowing at a...
1.What is the volumetric flow rate of a solution with density 1.5 kg/m3 flowing at a velocity of 5 m/s and a mass flow rate of 500 g/min? What is the area of the pipe? If it is circular, what is the radius? 2.Suppose that a river with a molar flow rate of 10000 mol/s meets another, larger river flowing at 500000 m3/s at room temperature. What is the mass flow rate of the river downstream of the intersection if...
(#9) evaluate integral SQRT(16x^2-1)dx using trigonometric substitution
(#9) evaluate integral SQRT(16x^2-1)dx using trigonometric substitution
Question 2. Answer all parts of this question a) A shell and tube heat exchanger is...
Question 2. Answer all parts of this question a) A shell and tube heat exchanger is to heat 10,000 kg h–1 of water from 16 to 84°C using hot oil entering at 160°C and leaving at 92°C. The oil will flow through the shell of the heat exchanger. The water will flow through 11 brass tubes of 22.9 mm inside diameter and 25.4 mm outside diameter, with thermal conductivity 137 W m–1 K–1, with each tube making two passes through...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT