Question: Q1. Consider a rectangular wing mounted in a low-speed subsonic wind tunnel. The wing model completely spans the test section so that the flow

Q1. Consider a rectangular wing mounted in a low-speed subsonic wind tunnel.

Q1. Consider a rectangular wing mounted in a low-speed subsonic wind tunnel. The wing model completely spans the test section so that the flow "sees" essentially an infinite wing. If the wing has an NACA 23012 aerofoil section and a chord of 0.3 m, a) calculate the lift, drag per unit span and the lift to drag ratio when the airflow pressure, temperature, velocity and viscosity are 1 atm, 303 K, 42 m/s, and 1.82 10-5 respectively. The angle of attack is 8. Use the presented data set to extract c, Ca. b) calculate the net skin-friction drag coefficient, the total skin-friction drag, and the total pressure drag force on the wing. Answers are available in Lecture 3 7 Moment coefficient, 3. Section at coefficient, e -1.2 1.6 3.6 32 28 2.4 201 1.6 1.2 -16 -8 0 Secrian angle of attack, de NACA 23012 Wing Bertion Moment coefficient, c 024 3020 Section drag coefficient, c DIB 012 008 16 24 -1.6 -12 -8 as position t We 30x10 241 036 6.0 241 .035 88 247 004 A 60 Standard roughness Section lift coefficient, NACA 23012 Wing Section (Continued) 1.2

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mechanical Engineering Questions!

Blossom Cookies bakes, packages, and distributes a variety of delicious cookies, including the company's best-selling chocolate chip and oatmeal raisin cookies. Jimmy, the head accountant, is...

Consider a rectangular wing mounted in a low - speed subsonic wind tunnel. The wing model completely spans the test section so that the flow sees essentially an infinite wing. If the wing has an NACA...

Write a java programme named Adding Numbers.java that uses a method to sum all the integers from 10 to 20 but skipping 15 and 16. Invoke the method within the print command line to print: The sum of...

5 . 3 Consider a rectangular wing mounted in a low - speed subsonic wing tunnel. The wing model completely spans the test section so that the flow "sees" essentially an infinite wing. If the wing has...

5 . 9 . Consider a wing mounted in the test section of a subsonic wind tunnel. The velocity of the airflow is 1 6 0 f t s . If the velocity at a point on the wing is 1 9 5 f t s , what is the...

Consider the flow field over a circular cylinder mounted perpendicular to the flow in the test section of a low-speed subsonic wind tunnel. At standard sea level conditions, if the flow velocity at...

Problem 0 5 . 0 1 0 - Calculate pressure coefficient for compressible flow Consider a wing mounted in the test - section of a subsonic wind tunnel. The velocity of the airflow is \ ( 1 6 0 \ mathrm {...

Betty Strand's regular hourly wage rate is $18, and she receives an hourly rate of $27 for work in excess of 40 hours. During a January pay period, Betty works 47 hours. Betty's federal income tax...

Examples from 1 to 1 2 are direct application of Bernoulli's equation ( Try them all ) Example: Consider a model of an airplane mounted in a subsonic wind tunnel. The wind tunnel has a nozzle of 1 2...

Maria Addaihas been offered a future payment of $750 two years from now. If she can earn 6.5 percent compounded annually on her investment, what should she pay for this investment today?

Consider an international airline that has separate check-in counters for business class and economy customers. There is one business class counter that gets 30 customers per hour on average while...

explain what independence is for an internal audit department. How does the three lines of defense model ensure internal audit is independent?

Spring and summer fashions, a clothing producer, has generated a forecast for the next eight weeks. Demand is expected to be fairly steady. except for periods 3 and 4. which have higher demands: The...

Planners for a company that makes several models of skateboards are about to prepare the capacity plan that will cover six periods. They have assembled the following information. They intend to start...

Suppose that todays date is April 15. A bond with a 9% coupon paid semiannually every January 15 and July 15 is quoted as selling at an ask price of 1,011.429. If you buy the bond from a dealer...

Determine the F (s) of the drawn time function (f(t)=2 when t > 3) 2. 3 It's one of the following answers: a) b) FiG) -1-e-2) c) d) Fls) =(1-2e-2)

The time to replace vehicle wiper blades at a service center was monitored using a mean and a range chart. Six samples of n = 20 observations have been obtained and the sample means and ranges...

Design a minimum-mass symmetric three-bar truss (the area of member 1 and that of member 3 are the same) to support a load P, as was shown in Fig. 2.9. The following notation may be used: Pu = P cos...

Let U be a random variable which is uniformly distributed on (0, 1); and define the random variables Yn, n 1, by Now, since, with probability 1, U will be greater than 0, it follows that Yn will...

37. Show that the stationary probabilities for the Markov chain having transition probabilities Pi,j are also the stationary probabilities for the Markov chain whose transition probabilities Qi,j are...

The lifetime of a car is a continuous random variable having a distributionH and probability density h. Mr. Brown has a policy that he buys a new car as soon as his old one either breaks down or...