Fluid Mechanics.
I have solved the question but I found another answer.
My final answer is: (Wall shear stress )= cf *(p fluid density) * u^2
is it correct?
(b) Resistance of an object towards the incoming flow can be quantified through local
friction coefficient, cf. The coefficient is indeed a function of wall shear stress (τw),
fluid density (ρ) and incoming flow velocity (u). Using Buckingham Pi Theorem,
determine the equation for the wall shear stress as a function of local friction coefficient,
fluid density, and incoming flow velocity.
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
help An impeller is a rotor used to increase the pressure and flow of a fluid....
help
An impeller is a rotor used to increase the pressure and flow of a fluid. For an isolated rotating impeller the required torque, T can be described by diameter of impeller D, density of fluid p, dynamic viscosity of the fluid u and angular velocity of the impeller w. By using Buckingham Pi Theorem (dimensional groups theorem), determine the dimensionless relationship between Torque and other parameters. Show that nondimensional parameters that you find. NOTE: Use a length, a density...
Consider laminar flow of an incompressible fluid past a flat plate. The boundary layer velocity profile...
Consider laminar flow of an incompressible fluid past a flat plate. The boundary layer velocity profile is given as u = U sin () a. Determine the boundary layer thicknesses 8, 8, as a function of x. Express in terms of Reynolds number. b. Using momentum integral theory, determine the wall shear stress tw, as a func. of x. Express in terms of Reynolds number. C. Determine the friction drag coefficient, Cof-
need help with fluid mechanics problem Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air dens...
need help with fluid mechanics problem
Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air density p gravitational acceleration g, length of the flag I, and the area density" pa (which has dimensions M/L2) of the flag material Using the Buckingham Pi theorem with V, p, and Las your repeating variables, determine the relevant dimensionless groups. Nate. You must...
A biofluid is flowing down an inclined plane. The velocity profile of this fluid can be...
A biofluid is flowing down an inclined plane. The velocity profile of this fluid can be described by P& 2 Sine if the coordinate axis is aligned with the inclined plane. In the equation above, ρ and μ the fluid density and viscosity, respectively; g is the acceleration of gravity, h is the thickness of the fluid film, and θ is the angle of inclination of the plane. a. Sketch a diagram of the system and reference coordinates. (5 points)...
1) The convection coefficient, (h) for external convection heat transfer depends on the following (with units...
1) The convection coefficient, (h) for external convection heat transfer depends on the following (with units in SI of Watts/(m2 Kelvin): The characteristic length, L The fluid thermal conductivity, k The average fluid velocity, V The fluid viscosity, μ The fluid density, ρ The fluid specific heat, cp Using the Buckingham Pi Theorem, determine a set of dimensionless groups that can be used to correlate test data for this problem. Please show all of your work for this problem (i.e....
Could you write down the answer legible please i cannot read most of the answer sheets....
Could you write down the answer legible please i cannot read
most of the answer sheets. Thank you in advance, professor.
Flow over a cylinder can generate a Karman Vortex street under certain conditions. By using Buckingham Pi theorem for the dimensional parameters given below, find a relation for the vortex shedding in terms of the nondimensional numbers that you determine. Dimensional Parameters: Vortex shedding frequency f Freestream velocity, V Fluid density, P Fluid viscosity u Cylinder diameter, D
Fluid Mechanics Chapter 7 Intro QUESTION 1 If the number of parameters in a problem is...
Fluid Mechanics Chapter 7 Intro
QUESTION 1 If the number of parameters in a problem is m and the number of primary dimensions is 3, then the number of resultant Pl terms is QUESTION 2 If an object travels with a velocity V, a distance, s, in time t. The Pl term formed by using the three variables is QUESTION 3 Friction in the pipe: The shear stress on the pipe-walls (Tw) is a function of flow velocity, V, fluid...
Starting from the expression for the flow rate in a pipe, Q. for incompressible fluid: Q=T...
Starting from the expression for the flow rate in a pipe, Q. for incompressible fluid: Q=T R* Ap /(8 uL) (1) where R is the pipe radius, Ap is the pressure difference between the inlet and the outlet sections. u is the fluid density, and L is the pipe length. please prove that: 4t/(0.5 p v)= 64 /Re (2) where tw is the wall shear stress, and p is the liquid density and v is the average velocity in the...
Using dimensional analysis, express the characteristic length, velocity and time scales for near-wall flow in terms...
Using dimensional analysis, express the characteristic length, velocity and time scales for near-wall flow in terms of the density, viscosity and wall shear-stress. Show that the length scale can also be expressed as where v is the kinematic ur viscosity and u, is the friction velocity.
Question 1: Derive an expression for the shear stress at the pipe wall when an incompressible...
Question 1: Derive an expression for the shear stress at the pipe wall when an incompressible fluid flows through a pipe under pressure. Use dimensional analysis with the following significant parameters: pipe diameter D, flow velocity V, fluid viscosity u and density, p of the fluid.
help
An impeller is a rotor used to increase the pressure and flow of a fluid. For an isolated rotating impeller the required torque, T can be described by diameter of impeller D, density of fluid p, dynamic viscosity of the fluid u and angular velocity of the impeller w. By using Buckingham Pi Theorem (dimensional groups theorem), determine the dimensionless relationship between Torque and other parameters. Show that nondimensional parameters that you find. NOTE: Use a length, a density...
Consider laminar flow of an incompressible fluid past a flat plate. The boundary layer velocity profile is given as u = U sin () a. Determine the boundary layer thicknesses 8, 8, as a function of x. Express in terms of Reynolds number. b. Using momentum integral theory, determine the wall shear stress tw, as a func. of x. Express in terms of Reynolds number. C. Determine the friction drag coefficient, Cof-
need help with fluid mechanics problem
Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air density p gravitational acceleration g, length of the flag I, and the area density" pa (which has dimensions M/L2) of the flag material Using the Buckingham Pi theorem with V, p, and Las your repeating variables, determine the relevant dimensionless groups. Nate. You must...
A biofluid is flowing down an inclined plane. The velocity profile of this fluid can be described by P& 2 Sine if the coordinate axis is aligned with the inclined plane. In the equation above, ρ and μ the fluid density and viscosity, respectively; g is the acceleration of gravity, h is the thickness of the fluid film, and θ is the angle of inclination of the plane. a. Sketch a diagram of the system and reference coordinates. (5 points)...
1) The convection coefficient, (h) for external convection heat transfer depends on the following (with units in SI of Watts/(m2 Kelvin): The characteristic length, L The fluid thermal conductivity, k The average fluid velocity, V The fluid viscosity, μ The fluid density, ρ The fluid specific heat, cp Using the Buckingham Pi Theorem, determine a set of dimensionless groups that can be used to correlate test data for this problem. Please show all of your work for this problem (i.e....
Could you write down the answer legible please i cannot read
most of the answer sheets. Thank you in advance, professor.
Flow over a cylinder can generate a Karman Vortex street under certain conditions. By using Buckingham Pi theorem for the dimensional parameters given below, find a relation for the vortex shedding in terms of the nondimensional numbers that you determine. Dimensional Parameters: Vortex shedding frequency f Freestream velocity, V Fluid density, P Fluid viscosity u Cylinder diameter, D
Fluid Mechanics Chapter 7 Intro
QUESTION 1 If the number of parameters in a problem is m and the number of primary dimensions is 3, then the number of resultant Pl terms is QUESTION 2 If an object travels with a velocity V, a distance, s, in time t. The Pl term formed by using the three variables is QUESTION 3 Friction in the pipe: The shear stress on the pipe-walls (Tw) is a function of flow velocity, V, fluid...
Starting from the expression for the flow rate in a pipe, Q. for incompressible fluid: Q=T R* Ap /(8 uL) (1) where R is the pipe radius, Ap is the pressure difference between the inlet and the outlet sections. u is the fluid density, and L is the pipe length. please prove that: 4t/(0.5 p v)= 64 /Re (2) where tw is the wall shear stress, and p is the liquid density and v is the average velocity in the...
Using dimensional analysis, express the characteristic length, velocity and time scales for near-wall flow in terms of the density, viscosity and wall shear-stress. Show that the length scale can also be expressed as where v is the kinematic ur viscosity and u, is the friction velocity.
Question 1: Derive an expression for the shear stress at the pipe wall when an incompressible fluid flows through a pipe under pressure. Use dimensional analysis with the following significant parameters: pipe diameter D, flow velocity V, fluid viscosity u and density, p of the fluid.
Most questions answered within 3 hours.
-
The highway department wants to estimate the proportion of
vehicles on Interstate 25 between the hours...
asked 2 minutes ago -
8. According to the lecture on chapter 7 of Religions in the
Modern World, which of...
asked 1 minute ago -
Say a study determines that the amount of time that college
students on a given campus...
asked 36 minutes ago -
Each PART should be 1–2 paragraphs in length.
PART 1: IDENTIFYING THE CUSTOMER AND PROBLEM
Choose...
asked 23 minutes ago -
A 0.357 g of sample of an unknown oxidant is added to an excess
solution of...
asked 37 minutes ago -
Bond James Bond Corporation has 7 percent coupon bonds that have
9 years left to maturity....
asked 32 minutes ago -
Suppose Rural wage = $2.40 per day, Urban modern wage = $4.50
per day, Urban informal...
asked 34 minutes ago -
Draw a different protonation states of histidine at pH 0, 4, 8,
12
asked 51 minutes ago -
List the four (4) elements of strategy Explain briefly those
activities that are conducted under each...
asked 54 minutes ago -
if
a smooth ball is 39.5mm and mass is 23g, the ball is released from
underwater....
asked 59 minutes ago -
An open economy whose total desired spending (C+I+G) exceeds its
potential output (Yf) experiences a trade...
asked 1 hour ago -
What are the differences between the leadership of virtual teams
and the leadership of traditional teams...
asked 1 hour ago