Homework Answers
Hope
explanation is clear.
Will appreciate feedback.
Add Answer to:
C Problem 2 (10 Marks) When the angle of attack of a certain airfoil is 12°,...
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is...
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is at a 5° angle of attack during sea-level flight at V = 100 ft/s. Calculate the lift and moment (about the quarter chord) per unit span. (See Fig. 4.10). (b) Find the profile drag coefficient for the airfoil of Part (a), and drag force per unit span. (See Fig. 4.11).
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is...
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is at a 5° angle of attack during sea-level flight at V = 100 ft/s. Calculate the lift and moment (about the quarter chord) per unit span. (See Fig. 4.10). (b) Find the profile drag coefficient for the airfoil of Part (a), and drag force per unit span. (See Fig. 4.11).
A very thin flat plate "airfoil" with a 1m chord is placed at an angle of attack α with respect t...
A very thin flat plate "airfoil" with a 1m chord is placed at an angle of attack α with respect to the free stream velocity Voo. The pressure distribution on the top and bottom surfaces of the "airfoil" are given by: pu -5.4x104 + 4x104(x - 1)2 (Nm2) pi- 1.7x105 + 2x104(x - 1)2 (Nm2) where X is the distance from the leadıng edge measured in meters. Neglecting shear stresses, determine the lift and drag forces per unit span. At...
1. (18%) A certain thin, symmetric airfoil stalls at angles of attack greater than α-16". At α 16", it produces a lift per unit span of L' 2,000 Nm at standard sea-level conditions; its c...
1. (18%) A certain thin, symmetric airfoil stalls at angles of attack greater than α-16". At α 16", it produces a lift per unit span of L' 2,000 Nm at standard sea-level conditions; its chord length is c m. a) Use thin airfoil theory to calculate the airfoil speed, Vp, just prior to stall, i.e. at a 16 b) For this real airfoil, will the a at which stall occurs depend on the Reynolds number? Why? c) Use thin airfoil...
Question 2.10 A two-dimensional wedge-shaped airfoil, with chord, c, consists of straight-line segments with wedge angl...
Question 2.10 A two-dimensional wedge-shaped airfoil, with chord, c, consists of straight-line segments with wedge angles, θ¡et and θaf, at the leading and trailing edges, as defined in the figure and given in the table below. The airfoil operates at an angle of attack, α, and it is moving through air at a supersonic speed, M. The atmospheric temperature and pressure far upstream of the airfoil are T and p as specified in the table The various flow regions are...
Problem 1 For a certain wing the lift force is 3000 lb when it is moving at 200mph through standa...
Problem 1 For a certain wing the lift force is 3000 lb when it is moving at 200mph through standard see level atmosphere conditions. The centre of pressure is 2.4 ft aft of the leading edge. The span is 36 ft, the average chord is 6 ft. Find the pitching moment coefficient about: a) the leading edge; b) the centre of pressure; c) the trailing edge. Problem 2 If the aircraft of Problem 1 travels, at the same angle of...
* This is all the information given QUESTION 1 (iii,iv) PLEASE!!!: Examine the car performance when the angle of both the front and rear wings is set to θ = 10◦. In all the analysis that follows ign...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
2. 2/10 points Previous Answers SerPSE10 5.AE.011. My Notes Experimental Determination of H's and The following...
2. 2/10 points Previous Answers SerPSE10 5.AE.011. My Notes Experimental Determination of H's and The following is a simple method of measuring coefficients of friction. Suppose a block is placed on a rough surface inclined relative to the horizontal as shown in the figure. The incline angle is increased until the block starts to move. Show that you can obtain H by measuring the critical angle e, at which this slipping just occurs. The external forces exerted on a block...
Suppose the tractor pulls horizontally on the sled instead of at an angle of 36.9. As...
Suppose the tractor pulls horizontally on the sled instead of at an angle of 36.9. As a result, the magnitude of the friction force increases to 4400N. What is the total work done on the sled? Answer: 1.20x10 J onedo 72 Work 187 SOLUTION The statement of the problem gives the hright h rather than the distance s measured along the ramp, but we can solve for h by recogsizing from the geometry in Figare 7.13 that s sinB- h....
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is at a 5° angle of attack during sea-level flight at V = 100 ft/s. Calculate the lift and moment (about the quarter chord) per unit span. (See Fig. 4.10). (b) Find the profile drag coefficient for the airfoil of Part (a), and drag force per unit span. (See Fig. 4.11).
Problem 4 (20 points) (a) An NACA 2412 airfoil with chord length of 6 ft is at a 5° angle of attack during sea-level flight at V = 100 ft/s. Calculate the lift and moment (about the quarter chord) per unit span. (See Fig. 4.10). (b) Find the profile drag coefficient for the airfoil of Part (a), and drag force per unit span. (See Fig. 4.11).
A very thin flat plate "airfoil" with a 1m chord is placed at an angle of attack α with respect to the free stream velocity Voo. The pressure distribution on the top and bottom surfaces of the "airfoil" are given by: pu -5.4x104 + 4x104(x - 1)2 (Nm2) pi- 1.7x105 + 2x104(x - 1)2 (Nm2) where X is the distance from the leadıng edge measured in meters. Neglecting shear stresses, determine the lift and drag forces per unit span. At...
1. (18%) A certain thin, symmetric airfoil stalls at angles of attack greater than α-16". At α 16", it produces a lift per unit span of L' 2,000 Nm at standard sea-level conditions; its chord length is c m. a) Use thin airfoil theory to calculate the airfoil speed, Vp, just prior to stall, i.e. at a 16 b) For this real airfoil, will the a at which stall occurs depend on the Reynolds number? Why? c) Use thin airfoil...
Question 2.10 A two-dimensional wedge-shaped airfoil, with chord, c, consists of straight-line segments with wedge angles, θ¡et and θaf, at the leading and trailing edges, as defined in the figure and given in the table below. The airfoil operates at an angle of attack, α, and it is moving through air at a supersonic speed, M. The atmospheric temperature and pressure far upstream of the airfoil are T and p as specified in the table The various flow regions are...
Problem 1 For a certain wing the lift force is 3000 lb when it is moving at 200mph through standard see level atmosphere conditions. The centre of pressure is 2.4 ft aft of the leading edge. The span is 36 ft, the average chord is 6 ft. Find the pitching moment coefficient about: a) the leading edge; b) the centre of pressure; c) the trailing edge. Problem 2 If the aircraft of Problem 1 travels, at the same angle of...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
2. 2/10 points Previous Answers SerPSE10 5.AE.011. My Notes Experimental Determination of H's and The following is a simple method of measuring coefficients of friction. Suppose a block is placed on a rough surface inclined relative to the horizontal as shown in the figure. The incline angle is increased until the block starts to move. Show that you can obtain H by measuring the critical angle e, at which this slipping just occurs. The external forces exerted on a block...
Suppose the tractor pulls horizontally on the sled instead of at an angle of 36.9. As a result, the magnitude of the friction force increases to 4400N. What is the total work done on the sled? Answer: 1.20x10 J onedo 72 Work 187 SOLUTION The statement of the problem gives the hright h rather than the distance s measured along the ramp, but we can solve for h by recogsizing from the geometry in Figare 7.13 that s sinB- h....
Most questions answered within 3 hours.
-
Part 1
(a) Calculate the pH at 25°C of a 0.10 M solution of a
weak...
asked 1 minute ago -
1-Calculate the mass in grams of 2.55 moles of KCl
2- Calculate how many moles are...
asked 29 minutes ago -
Bright Sun, Inc. sold an issue of 30-year $1,000 par value bonds
to the public. The...
asked 23 minutes ago -
Bismuth-210 is beta emitter with a half-life of 5.0 days.
Part A
If a sample contains...
asked 15 minutes ago -
The income statement for the month of June, 2014 of Happy Smiles
Enterprises contains the following...
asked 28 minutes ago -
To be done in java code. 2 words are anagrams if 1 word can be
formed...
asked 26 minutes ago -
Two players take turns at removing 1 to 4 coins from an original
pile of 16...
asked 22 minutes ago -
1. Choose value for p between 0.20 and 0.80. It should have at
least two decimal...
asked 30 minutes ago -
QUESTIONS: 500 words for the question
In defining abnormality, the criteria of “deviance”, “distress”
and “dysfunction”...
asked 31 minutes ago -
A sample of n = 25 scores produces a t statistic of t =
-2.062. If...
asked 49 minutes ago -
Given the following, compute the after tax cost of debt: The par
value of the firms...
asked 43 minutes ago -
Coding in C. Please only use stdio.h (which would mean no malloc
or anything like that)...
asked 48 minutes ago